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Finding the Fourth Proportional to 360,391.86, 497,390.13 and 207,426.87

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Solution

The fourth proportional to 360,391.86, 497,390.13 and 207,426.87 is: 286,277.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,391.86 : 497,390.13 = 207,426.87 : x
  2. Step 2: Convert to fraction form
    360,391.86/497,390.13 = 207,426.87/x
  3. Step 3: Cross multiply
    360,391.86x = 497,390.13 × 207,426.87
  4. Step 4: Simplify right side
    360,391.86x = 103,172,077,834.79
  5. Step 5: Solve for x
    x = 103,172,077,834.79/360,391.86
  6. Step 6: Final answer
    x = 286,277.49

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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.