Home / 240,209.81-331,522.47-138,233.18

Finding the Fourth Proportional to 240,209.81, 331,522.47 and 138,233.18

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Solution

The fourth proportional to 240,209.81, 331,522.47 and 138,233.18 is: 190,780.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,209.81 : 331,522.47 = 138,233.18 : x
  2. Step 2: Convert to fraction form
    240,209.81/331,522.47 = 138,233.18/x
  3. Step 3: Cross multiply
    240,209.81x = 331,522.47 × 138,233.18
  4. Step 4: Simplify right side
    240,209.81x = 45,827,405,269.55
  5. Step 5: Solve for x
    x = 45,827,405,269.55/240,209.81
  6. Step 6: Final answer
    x = 190,780.74

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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.