Home / 385,373.62-531,816.06-215,607.88

Finding the Fourth Proportional to 385,373.62, 531,816.06 and 215,607.88

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Solution

The fourth proportional to 385,373.62, 531,816.06 and 215,607.88 is: 297,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,373.62 : 531,816.06 = 215,607.88 : x
  2. Step 2: Convert to fraction form
    385,373.62/531,816.06 = 215,607.88/x
  3. Step 3: Cross multiply
    385,373.62x = 531,816.06 × 215,607.88
  4. Step 4: Simplify right side
    385,373.62x = 114,663,733,246.55
  5. Step 5: Solve for x
    x = 114,663,733,246.55/385,373.62
  6. Step 6: Final answer
    x = 297,539.13

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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.