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Finding the Fourth Proportional to 442,169.40, 610,020.54 and 272,108.28

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Solution

The fourth proportional to 442,169.40, 610,020.54 and 272,108.28 is: 375,402.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,169.40 : 610,020.54 = 272,108.28 : x
  2. Step 2: Convert to fraction form
    442,169.40/610,020.54 = 272,108.28/x
  3. Step 3: Cross multiply
    442,169.40x = 610,020.54 × 272,108.28
  4. Step 4: Simplify right side
    442,169.40x = 165,991,639,904.07
  5. Step 5: Solve for x
    x = 165,991,639,904.07/442,169.40
  6. Step 6: Final answer
    x = 375,402.82

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1.5x scale

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.