Home / 245,423.68-338,675.92-137,999.88

Finding the Fourth Proportional to 245,423.68, 338,675.92 and 137,999.88

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Solution

The fourth proportional to 245,423.68, 338,675.92 and 137,999.88 is: 190,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.68 : 338,675.92 = 137,999.88 : x
  2. Step 2: Convert to fraction form
    245,423.68/338,675.92 = 137,999.88/x
  3. Step 3: Cross multiply
    245,423.68x = 338,675.92 × 137,999.88
  4. Step 4: Simplify right side
    245,423.68x = 46,737,236,318.89
  5. Step 5: Solve for x
    x = 46,737,236,318.89/245,423.68
  6. Step 6: Final answer
    x = 190,434.91

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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.