Home / 245,337.24-338,601.25-137,916.12

Finding the Fourth Proportional to 245,337.24, 338,601.25 and 137,916.12

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Solution

The fourth proportional to 245,337.24, 338,601.25 and 137,916.12 is: 190,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,337.24 : 338,601.25 = 137,916.12 : x
  2. Step 2: Convert to fraction form
    245,337.24/338,601.25 = 137,916.12/x
  3. Step 3: Cross multiply
    245,337.24x = 338,601.25 × 137,916.12
  4. Step 4: Simplify right side
    245,337.24x = 46,698,569,937.57
  5. Step 5: Solve for x
    x = 46,698,569,937.57/245,337.24
  6. Step 6: Final answer
    x = 190,344.40

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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.