Home / 261,890.88-361,397.74-153,005.31

Finding the Fourth Proportional to 261,890.88, 361,397.74 and 153,005.31

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Solution

The fourth proportional to 261,890.88, 361,397.74 and 153,005.31 is: 211,140.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,890.88 : 361,397.74 = 153,005.31 : x
  2. Step 2: Convert to fraction form
    261,890.88/361,397.74 = 153,005.31/x
  3. Step 3: Cross multiply
    261,890.88x = 361,397.74 × 153,005.31
  4. Step 4: Simplify right side
    261,890.88x = 55,295,773,242.00
  5. Step 5: Solve for x
    x = 55,295,773,242.00/261,890.88
  6. Step 6: Final answer
    x = 211,140.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.