Home / 239,263.48-330,191.08-137,307.60

Finding the Fourth Proportional to 239,263.48, 330,191.08 and 137,307.60

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Solution

The fourth proportional to 239,263.48, 330,191.08 and 137,307.60 is: 189,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,263.48 : 330,191.08 = 137,307.60 : x
  2. Step 2: Convert to fraction form
    239,263.48/330,191.08 = 137,307.60/x
  3. Step 3: Cross multiply
    239,263.48x = 330,191.08 × 137,307.60
  4. Step 4: Simplify right side
    239,263.48x = 45,337,744,736.21
  5. Step 5: Solve for x
    x = 45,337,744,736.21/239,263.48
  6. Step 6: Final answer
    x = 189,488.78

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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.