Home / 387,248.32-534,409.55-215,182.18

Finding the Fourth Proportional to 387,248.32, 534,409.55 and 215,182.18

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Solution

The fourth proportional to 387,248.32, 534,409.55 and 215,182.18 is: 296,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,248.32 : 534,409.55 = 215,182.18 : x
  2. Step 2: Convert to fraction form
    387,248.32/534,409.55 = 215,182.18/x
  3. Step 3: Cross multiply
    387,248.32x = 534,409.55 × 215,182.18
  4. Step 4: Simplify right side
    387,248.32x = 114,995,411,981.82
  5. Step 5: Solve for x
    x = 114,995,411,981.82/387,248.32
  6. Step 6: Final answer
    x = 296,955.22

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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.