Home / 319,617.78-479,302.02-119,829.30

Finding the Fourth Proportional to 319,617.78, 479,302.02 and 119,829.30

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Solution

The fourth proportional to 319,617.78, 479,302.02 and 119,829.30 is: 179,697.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,617.78 : 479,302.02 = 119,829.30 : x
  2. Step 2: Convert to fraction form
    319,617.78/479,302.02 = 119,829.30/x
  3. Step 3: Cross multiply
    319,617.78x = 479,302.02 × 119,829.30
  4. Step 4: Simplify right side
    319,617.78x = 57,434,425,545.19
  5. Step 5: Solve for x
    x = 57,434,425,545.19/319,617.78
  6. Step 6: Final answer
    x = 179,697.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.