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Finding the Fourth Proportional to 288,628.50, 432,983.46 and 88,965.12

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Solution

The fourth proportional to 288,628.50, 432,983.46 and 88,965.12 is: 133,460.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,628.50 : 432,983.46 = 88,965.12 : x
  2. Step 2: Convert to fraction form
    288,628.50/432,983.46 = 88,965.12/x
  3. Step 3: Cross multiply
    288,628.50x = 432,983.46 × 88,965.12
  4. Step 4: Simplify right side
    288,628.50x = 38,520,425,476.92
  5. Step 5: Solve for x
    x = 38,520,425,476.92/288,628.50
  6. Step 6: Final answer
    x = 133,460.23

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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.