Home / 261,505,237.20-392,257,855.80-170,805,973.20

Finding the Fourth Proportional to 261,505,237.20, 392,257,855.80 and 170,805,973.20

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Solution

The fourth proportional to 261,505,237.20, 392,257,855.80 and 170,805,973.20 is: 256,208,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,505,237.20 : 392,257,855.80 = 170,805,973.20 : x
  2. Step 2: Convert to fraction form
    261,505,237.20/392,257,855.80 = 170,805,973.20/x
  3. Step 3: Cross multiply
    261,505,237.20x = 392,257,855.80 × 170,805,973.20
  4. Step 4: Simplify right side
    261,505,237.20x = 66,999,984,805,264,264
  5. Step 5: Solve for x
    x = 66,999,984,805,264,264/261,505,237.20
  6. Step 6: Final answer
    x = 256,208,959.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.