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Finding the Fourth Proportional to 230,053.75, 317,465.88 and 128,076.59

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Solution

The fourth proportional to 230,053.75, 317,465.88 and 128,076.59 is: 176,741.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,053.75 : 317,465.88 = 128,076.59 : x
  2. Step 2: Convert to fraction form
    230,053.75/317,465.88 = 128,076.59/x
  3. Step 3: Cross multiply
    230,053.75x = 317,465.88 × 128,076.59
  4. Step 4: Simplify right side
    230,053.75x = 40,659,946,711.37
  5. Step 5: Solve for x
    x = 40,659,946,711.37/230,053.75
  6. Step 6: Final answer
    x = 176,741.07

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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.