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Finding the Fourth Proportional to 231,421.68, 347,178.96 and 98,300.88

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Solution

The fourth proportional to 231,421.68, 347,178.96 and 98,300.88 is: 147,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,421.68 : 347,178.96 = 98,300.88 : x
  2. Step 2: Convert to fraction form
    231,421.68/347,178.96 = 98,300.88/x
  3. Step 3: Cross multiply
    231,421.68x = 347,178.96 × 98,300.88
  4. Step 4: Simplify right side
    231,421.68x = 34,127,997,285.48
  5. Step 5: Solve for x
    x = 34,127,997,285.48/231,421.68
  6. Step 6: Final answer
    x = 147,471.05

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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.