Home / 319,962.60-479,943.90-109,573.20

Finding the Fourth Proportional to 319,962.60, 479,943.90 and 109,573.20

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Solution

The fourth proportional to 319,962.60, 479,943.90 and 109,573.20 is: 164,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,962.60 : 479,943.90 = 109,573.20 : x
  2. Step 2: Convert to fraction form
    319,962.60/479,943.90 = 109,573.20/x
  3. Step 3: Cross multiply
    319,962.60x = 479,943.90 × 109,573.20
  4. Step 4: Simplify right side
    319,962.60x = 52,588,988,943.48
  5. Step 5: Solve for x
    x = 52,588,988,943.48/319,962.60
  6. Step 6: Final answer
    x = 164,359.80

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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.