Home / 230,248.28-317,752.43-128,273.68

Finding the Fourth Proportional to 230,248.28, 317,752.43 and 128,273.68

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Solution

The fourth proportional to 230,248.28, 317,752.43 and 128,273.68 is: 177,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,248.28 : 317,752.43 = 128,273.68 : x
  2. Step 2: Convert to fraction form
    230,248.28/317,752.43 = 128,273.68/x
  3. Step 3: Cross multiply
    230,248.28x = 317,752.43 × 128,273.68
  4. Step 4: Simplify right side
    230,248.28x = 40,759,272,089.29
  5. Step 5: Solve for x
    x = 40,759,272,089.29/230,248.28
  6. Step 6: Final answer
    x = 177,023.13

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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.