Home / 239,870.56-331,012.80-132,438.40

Finding the Fourth Proportional to 239,870.56, 331,012.80 and 132,438.40

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Solution

The fourth proportional to 239,870.56, 331,012.80 and 132,438.40 is: 182,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,870.56 : 331,012.80 = 132,438.40 : x
  2. Step 2: Convert to fraction form
    239,870.56/331,012.80 = 132,438.40/x
  3. Step 3: Cross multiply
    239,870.56x = 331,012.80 × 132,438.40
  4. Step 4: Simplify right side
    239,870.56x = 43,838,805,611.52
  5. Step 5: Solve for x
    x = 43,838,805,611.52/239,870.56
  6. Step 6: Final answer
    x = 182,760.26

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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.