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Finding the Fourth Proportional to 288,335.16, 432,503.82 and 189,123.12

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Solution

The fourth proportional to 288,335.16, 432,503.82 and 189,123.12 is: 283,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,335.16 : 432,503.82 = 189,123.12 : x
  2. Step 2: Convert to fraction form
    288,335.16/432,503.82 = 189,123.12/x
  3. Step 3: Cross multiply
    288,335.16x = 432,503.82 × 189,123.12
  4. Step 4: Simplify right side
    288,335.16x = 81,796,471,850.32
  5. Step 5: Solve for x
    x = 81,796,471,850.32/288,335.16
  6. Step 6: Final answer
    x = 283,685.39

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1.5x scale

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.