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Finding the Fourth Proportional to 432,099.40, 647,598.30 and 242,559.40

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Solution

The fourth proportional to 432,099.40, 647,598.30 and 242,559.40 is: 363,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,099.40 : 647,598.30 = 242,559.40 : x
  2. Step 2: Convert to fraction form
    432,099.40/647,598.30 = 242,559.40/x
  3. Step 3: Cross multiply
    432,099.40x = 647,598.30 × 242,559.40
  4. Step 4: Simplify right side
    432,099.40x = 157,081,055,089.02
  5. Step 5: Solve for x
    x = 157,081,055,089.02/432,099.40
  6. Step 6: Final answer
    x = 363,529.91

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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.