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Finding the Fourth Proportional to 288,775.82, 433,135.16 and 89,042.30

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Solution

The fourth proportional to 288,775.82, 433,135.16 and 89,042.30 is: 133,554.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,775.82 : 433,135.16 = 89,042.30 : x
  2. Step 2: Convert to fraction form
    288,775.82/433,135.16 = 89,042.30/x
  3. Step 3: Cross multiply
    288,775.82x = 433,135.16 × 89,042.30
  4. Step 4: Simplify right side
    288,775.82x = 38,567,350,857.27
  5. Step 5: Solve for x
    x = 38,567,350,857.27/288,775.82
  6. Step 6: Final answer
    x = 133,554.64

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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.