Home / 230,412.27-317,937.55-128,425.63

Finding the Fourth Proportional to 230,412.27, 317,937.55 and 128,425.63

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Solution

The fourth proportional to 230,412.27, 317,937.55 and 128,425.63 is: 177,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,412.27 : 317,937.55 = 128,425.63 : x
  2. Step 2: Convert to fraction form
    230,412.27/317,937.55 = 128,425.63/x
  3. Step 3: Cross multiply
    230,412.27x = 317,937.55 × 128,425.63
  4. Step 4: Simplify right side
    230,412.27x = 40,831,329,043.50
  5. Step 5: Solve for x
    x = 40,831,329,043.50/230,412.27
  6. Step 6: Final answer
    x = 177,209.87

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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.