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Finding the Fourth Proportional to 265,760.64, 398,646.72 and 99,457.92

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Solution

The fourth proportional to 265,760.64, 398,646.72 and 99,457.92 is: 149,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,760.64 : 398,646.72 = 99,457.92 : x
  2. Step 2: Convert to fraction form
    265,760.64/398,646.72 = 99,457.92/x
  3. Step 3: Cross multiply
    265,760.64x = 398,646.72 × 99,457.92
  4. Step 4: Simplify right side
    265,760.64x = 39,648,573,586.02
  5. Step 5: Solve for x
    x = 39,648,573,586.02/265,760.64
  6. Step 6: Final answer
    x = 149,189.04

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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.