Home / 387,207.04-534,326.94-215,135.86

Finding the Fourth Proportional to 387,207.04, 534,326.94 and 215,135.86

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Solution

The fourth proportional to 387,207.04, 534,326.94 and 215,135.86 is: 296,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,207.04 : 534,326.94 = 215,135.86 : x
  2. Step 2: Convert to fraction form
    387,207.04/534,326.94 = 215,135.86/x
  3. Step 3: Cross multiply
    387,207.04x = 534,326.94 × 215,135.86
  4. Step 4: Simplify right side
    387,207.04x = 114,952,885,758.07
  5. Step 5: Solve for x
    x = 114,952,885,758.07/387,207.04
  6. Step 6: Final answer
    x = 296,877.06

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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.