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Finding the Fourth Proportional to 230,248.53, 317,752.77 and 128,273.93

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Solution

The fourth proportional to 230,248.53, 317,752.77 and 128,273.93 is: 177,023.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,248.53 : 317,752.77 = 128,273.93 : x
  2. Step 2: Convert to fraction form
    230,248.53/317,752.77 = 128,273.93/x
  3. Step 3: Cross multiply
    230,248.53x = 317,752.77 × 128,273.93
  4. Step 4: Simplify right side
    230,248.53x = 40,759,396,576.29
  5. Step 5: Solve for x
    x = 40,759,396,576.29/230,248.53
  6. Step 6: Final answer
    x = 177,023.48

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1.5x scale

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.