Home / 387,562.23-534,880.17-215,497.35

Finding the Fourth Proportional to 387,562.23, 534,880.17 and 215,497.35

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Solution

The fourth proportional to 387,562.23, 534,880.17 and 215,497.35 is: 297,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,562.23 : 534,880.17 = 215,497.35 : x
  2. Step 2: Convert to fraction form
    387,562.23/534,880.17 = 215,497.35/x
  3. Step 3: Cross multiply
    387,562.23x = 534,880.17 × 215,497.35
  4. Step 4: Simplify right side
    387,562.23x = 115,265,259,202.55
  5. Step 5: Solve for x
    x = 115,265,259,202.55/387,562.23
  6. Step 6: Final answer
    x = 297,410.97

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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.