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Finding the Fourth Proportional to 485,451.65, 669,945.95 and 270,593.27

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Solution

The fourth proportional to 485,451.65, 669,945.95 and 270,593.27 is: 373,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,451.65 : 669,945.95 = 270,593.27 : x
  2. Step 2: Convert to fraction form
    485,451.65/669,945.95 = 270,593.27/x
  3. Step 3: Cross multiply
    485,451.65x = 669,945.95 × 270,593.27
  4. Step 4: Simplify right side
    485,451.65x = 181,282,862,660.51
  5. Step 5: Solve for x
    x = 181,282,862,660.51/485,451.65
  6. Step 6: Final answer
    x = 373,431.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.