Home / 257,105.04-385,509.92-137,014.13

Finding the Fourth Proportional to 257,105.04, 385,509.92 and 137,014.13

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Solution

The fourth proportional to 257,105.04, 385,509.92 and 137,014.13 is: 205,442.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,105.04 : 385,509.92 = 137,014.13 : x
  2. Step 2: Convert to fraction form
    257,105.04/385,509.92 = 137,014.13/x
  3. Step 3: Cross multiply
    257,105.04x = 385,509.92 × 137,014.13
  4. Step 4: Simplify right side
    257,105.04x = 52,820,306,573.87
  5. Step 5: Solve for x
    x = 52,820,306,573.87/257,105.04
  6. Step 6: Final answer
    x = 205,442.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.