Home / 356,195.20-534,490.80-145,818.40

Finding the Fourth Proportional to 356,195.20, 534,490.80 and 145,818.40

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Solution

The fourth proportional to 356,195.20, 534,490.80 and 145,818.40 is: 218,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,195.20 : 534,490.80 = 145,818.40 : x
  2. Step 2: Convert to fraction form
    356,195.20/534,490.80 = 145,818.40/x
  3. Step 3: Cross multiply
    356,195.20x = 534,490.80 × 145,818.40
  4. Step 4: Simplify right side
    356,195.20x = 77,938,593,270.72
  5. Step 5: Solve for x
    x = 77,938,593,270.72/356,195.20
  6. Step 6: Final answer
    x = 218,808.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.