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Finding the Fourth Proportional to 288,635.60, 432,963.30 and 88,954.40

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Solution

The fourth proportional to 288,635.60, 432,963.30 and 88,954.40 is: 133,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,635.60 : 432,963.30 = 88,954.40 : x
  2. Step 2: Convert to fraction form
    288,635.60/432,963.30 = 88,954.40/x
  3. Step 3: Cross multiply
    288,635.60x = 432,963.30 × 88,954.40
  4. Step 4: Simplify right side
    288,635.60x = 38,513,990,573.52
  5. Step 5: Solve for x
    x = 38,513,990,573.52/288,635.60
  6. Step 6: Final answer
    x = 133,434.65

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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.