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Finding the Fourth Proportional to 485,357.00, 728,035.51 and 148,397.66

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Solution

The fourth proportional to 485,357.00, 728,035.51 and 148,397.66 is: 222,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,357.00 : 728,035.51 = 148,397.66 : x
  2. Step 2: Convert to fraction form
    485,357.00/728,035.51 = 148,397.66/x
  3. Step 3: Cross multiply
    485,357.00x = 728,035.51 × 148,397.66
  4. Step 4: Simplify right side
    485,357.00x = 108,038,767,530.00
  5. Step 5: Solve for x
    x = 108,038,767,530.00/485,357.00
  6. Step 6: Final answer
    x = 222,596.49

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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.