Home / 261,422.04-392,169.78-103,666.44

Finding the Fourth Proportional to 261,422.04, 392,169.78 and 103,666.44

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Solution

The fourth proportional to 261,422.04, 392,169.78 and 103,666.44 is: 155,514.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,422.04 : 392,169.78 = 103,666.44 : x
  2. Step 2: Convert to fraction form
    261,422.04/392,169.78 = 103,666.44/x
  3. Step 3: Cross multiply
    261,422.04x = 392,169.78 × 103,666.44
  4. Step 4: Simplify right side
    261,422.04x = 40,654,844,968.18
  5. Step 5: Solve for x
    x = 40,654,844,968.18/261,422.04
  6. Step 6: Final answer
    x = 155,514.22

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1.5x scale

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.