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Finding the Fourth Proportional to 288,580.73, 432,878.58 and 136,742.38

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Solution

The fourth proportional to 288,580.73, 432,878.58 and 136,742.38 is: 205,117.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,580.73 : 432,878.58 = 136,742.38 : x
  2. Step 2: Convert to fraction form
    288,580.73/432,878.58 = 136,742.38/x
  3. Step 3: Cross multiply
    288,580.73x = 432,878.58 × 136,742.38
  4. Step 4: Simplify right side
    288,580.73x = 59,192,846,198.02
  5. Step 5: Solve for x
    x = 59,192,846,198.02/288,580.73
  6. Step 6: Final answer
    x = 205,117.12

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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.