Home / 379,278.61-569,001.02-142,621.30

Finding the Fourth Proportional to 379,278.61, 569,001.02 and 142,621.30

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Solution

The fourth proportional to 379,278.61, 569,001.02 and 142,621.30 is: 213,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,278.61 : 569,001.02 = 142,621.30 : x
  2. Step 2: Convert to fraction form
    379,278.61/569,001.02 = 142,621.30/x
  3. Step 3: Cross multiply
    379,278.61x = 569,001.02 × 142,621.30
  4. Step 4: Simplify right side
    379,278.61x = 81,151,665,173.73
  5. Step 5: Solve for x
    x = 81,151,665,173.73/379,278.61
  6. Step 6: Final answer
    x = 213,963.20

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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.