Home / 257,937.42-387,008.19-100,210.98

Finding the Fourth Proportional to 257,937.42, 387,008.19 and 100,210.98

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Solution

The fourth proportional to 257,937.42, 387,008.19 and 100,210.98 is: 150,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,937.42 : 387,008.19 = 100,210.98 : x
  2. Step 2: Convert to fraction form
    257,937.42/387,008.19 = 100,210.98/x
  3. Step 3: Cross multiply
    257,937.42x = 387,008.19 × 100,210.98
  4. Step 4: Simplify right side
    257,937.42x = 38,782,469,987.93
  5. Step 5: Solve for x
    x = 38,782,469,987.93/257,937.42
  6. Step 6: Final answer
    x = 150,356.12

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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.