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Finding the Fourth Proportional to 288,960.48, 433,440.72 and 78,599.52

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Solution

The fourth proportional to 288,960.48, 433,440.72 and 78,599.52 is: 117,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,960.48 : 433,440.72 = 78,599.52 : x
  2. Step 2: Convert to fraction form
    288,960.48/433,440.72 = 78,599.52/x
  3. Step 3: Cross multiply
    288,960.48x = 433,440.72 × 78,599.52
  4. Step 4: Simplify right side
    288,960.48x = 34,068,232,540.45
  5. Step 5: Solve for x
    x = 34,068,232,540.45/288,960.48
  6. Step 6: Final answer
    x = 117,899.28

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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.