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Finding the Fourth Proportional to 485,502.53, 728,341.29 and 148,536.86

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Solution

The fourth proportional to 485,502.53, 728,341.29 and 148,536.86 is: 222,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,502.53 : 728,341.29 = 148,536.86 : x
  2. Step 2: Convert to fraction form
    485,502.53/728,341.29 = 148,536.86/x
  3. Step 3: Cross multiply
    485,502.53x = 728,341.29 × 148,536.86
  4. Step 4: Simplify right side
    485,502.53x = 108,185,524,583.24
  5. Step 5: Solve for x
    x = 108,185,524,583.24/485,502.53
  6. Step 6: Final answer
    x = 222,832.05

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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.