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Finding the Fourth Proportional to 230,059.92, 317,476.51 and 128,085.45

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Solution

The fourth proportional to 230,059.92, 317,476.51 and 128,085.45 is: 176,754.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,059.92 : 317,476.51 = 128,085.45 : x
  2. Step 2: Convert to fraction form
    230,059.92/317,476.51 = 128,085.45/x
  3. Step 3: Cross multiply
    230,059.92x = 317,476.51 × 128,085.45
  4. Step 4: Simplify right side
    230,059.92x = 40,664,121,647.78
  5. Step 5: Solve for x
    x = 40,664,121,647.78/230,059.92
  6. Step 6: Final answer
    x = 176,754.48

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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.