Home / 215,931.52-323,793.28-122,412.16

Finding the Fourth Proportional to 215,931.52, 323,793.28 and 122,412.16

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Solution

The fourth proportional to 215,931.52, 323,793.28 and 122,412.16 is: 183,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,931.52 : 323,793.28 = 122,412.16 : x
  2. Step 2: Convert to fraction form
    215,931.52/323,793.28 = 122,412.16/x
  3. Step 3: Cross multiply
    215,931.52x = 323,793.28 × 122,412.16
  4. Step 4: Simplify right side
    215,931.52x = 39,636,234,798.28
  5. Step 5: Solve for x
    x = 39,636,234,798.28/215,931.52
  6. Step 6: Final answer
    x = 183,559.28

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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.