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Finding the Fourth Proportional to 432,100.40, 647,599.80 and 242,560.40

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Solution

The fourth proportional to 432,100.40, 647,599.80 and 242,560.40 is: 363,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,100.40 : 647,599.80 = 242,560.40 : x
  2. Step 2: Convert to fraction form
    432,100.40/647,599.80 = 242,560.40/x
  3. Step 3: Cross multiply
    432,100.40x = 647,599.80 × 242,560.40
  4. Step 4: Simplify right side
    432,100.40x = 157,082,066,527.92
  5. Step 5: Solve for x
    x = 157,082,066,527.92/432,100.40
  6. Step 6: Final answer
    x = 363,531.41

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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.