Home / 240,225.27-331,495.10-138,234.28

Finding the Fourth Proportional to 240,225.27, 331,495.10 and 138,234.28

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Solution

The fourth proportional to 240,225.27, 331,495.10 and 138,234.28 is: 190,754.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,225.27 : 331,495.10 = 138,234.28 : x
  2. Step 2: Convert to fraction form
    240,225.27/331,495.10 = 138,234.28/x
  3. Step 3: Cross multiply
    240,225.27x = 331,495.10 × 138,234.28
  4. Step 4: Simplify right side
    240,225.27x = 45,823,984,814.55
  5. Step 5: Solve for x
    x = 45,823,984,814.55/240,225.27
  6. Step 6: Final answer
    x = 190,754.22

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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.