Home / 387,036.18-534,109.86-217,270.14

Finding the Fourth Proportional to 387,036.18, 534,109.86 and 217,270.14

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Solution

The fourth proportional to 387,036.18, 534,109.86 and 217,270.14 is: 299,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,036.18 : 534,109.86 = 217,270.14 : x
  2. Step 2: Convert to fraction form
    387,036.18/534,109.86 = 217,270.14/x
  3. Step 3: Cross multiply
    387,036.18x = 534,109.86 × 217,270.14
  4. Step 4: Simplify right side
    387,036.18x = 116,046,124,057.58
  5. Step 5: Solve for x
    x = 116,046,124,057.58/387,036.18
  6. Step 6: Final answer
    x = 299,832.75

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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.