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Finding the Fourth Proportional to 348,000.20, 521,344.20 and 178,945.10

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Solution

The fourth proportional to 348,000.20, 521,344.20 and 178,945.10 is: 268,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,000.20 : 521,344.20 = 178,945.10 : x
  2. Step 2: Convert to fraction form
    348,000.20/521,344.20 = 178,945.10/x
  3. Step 3: Cross multiply
    348,000.20x = 521,344.20 × 178,945.10
  4. Step 4: Simplify right side
    348,000.20x = 93,291,990,003.42
  5. Step 5: Solve for x
    x = 93,291,990,003.42/348,000.20
  6. Step 6: Final answer
    x = 268,080.28

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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.