Home / 387,204.03-534,322.80-215,132.85

Finding the Fourth Proportional to 387,204.03, 534,322.80 and 215,132.85

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Solution

The fourth proportional to 387,204.03, 534,322.80 and 215,132.85 is: 296,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,204.03 : 534,322.80 = 215,132.85 : x
  2. Step 2: Convert to fraction form
    387,204.03/534,322.80 = 215,132.85/x
  3. Step 3: Cross multiply
    387,204.03x = 534,322.80 × 215,132.85
  4. Step 4: Simplify right side
    387,204.03x = 114,950,386,783.98
  5. Step 5: Solve for x
    x = 114,950,386,783.98/387,204.03
  6. Step 6: Final answer
    x = 296,872.91

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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.