Home / 240,368.45-331,695-131,451.12

Finding the Fourth Proportional to 240,368.45, 331,695 and 131,451.12

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Solution

The fourth proportional to 240,368.45, 331,695 and 131,451.12 is: 181,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,368.45 : 331,695 = 131,451.12 : x
  2. Step 2: Convert to fraction form
    240,368.45/331,695 = 131,451.12/x
  3. Step 3: Cross multiply
    240,368.45x = 331,695 × 131,451.12
  4. Step 4: Simplify right side
    240,368.45x = 43,601,679,248.40
  5. Step 5: Solve for x
    x = 43,601,679,248.40/240,368.45
  6. Step 6: Final answer
    x = 181,395.19

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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.