Home / 239,788.80-330,916.56-130,899.60

Finding the Fourth Proportional to 239,788.80, 330,916.56 and 130,899.60

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Solution

The fourth proportional to 239,788.80, 330,916.56 and 130,899.60 is: 180,645.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,788.80 : 330,916.56 = 130,899.60 : x
  2. Step 2: Convert to fraction form
    239,788.80/330,916.56 = 130,899.60/x
  3. Step 3: Cross multiply
    239,788.80x = 330,916.56 × 130,899.60
  4. Step 4: Simplify right side
    239,788.80x = 43,316,845,337.38
  5. Step 5: Solve for x
    x = 43,316,845,337.38/239,788.80
  6. Step 6: Final answer
    x = 180,645.82

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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.