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Finding the Fourth Proportional to 432,090.90, 647,585.55 and 242,550.90

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Solution

The fourth proportional to 432,090.90, 647,585.55 and 242,550.90 is: 363,517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,090.90 : 647,585.55 = 242,550.90 : x
  2. Step 2: Convert to fraction form
    432,090.90/647,585.55 = 242,550.90/x
  3. Step 3: Cross multiply
    432,090.90x = 647,585.55 × 242,550.90
  4. Step 4: Simplify right side
    432,090.90x = 157,072,457,979.50
  5. Step 5: Solve for x
    x = 157,072,457,979.50/432,090.90
  6. Step 6: Final answer
    x = 363,517.16

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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.