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Finding the Fourth Proportional to 372,005.80, 558,008.70 and 222,706.60

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Solution

The fourth proportional to 372,005.80, 558,008.70 and 222,706.60 is: 334,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,005.80 : 558,008.70 = 222,706.60 : x
  2. Step 2: Convert to fraction form
    372,005.80/558,008.70 = 222,706.60/x
  3. Step 3: Cross multiply
    372,005.80x = 558,008.70 × 222,706.60
  4. Step 4: Simplify right side
    372,005.80x = 124,272,220,347.42
  5. Step 5: Solve for x
    x = 124,272,220,347.42/372,005.80
  6. Step 6: Final answer
    x = 334,059.90

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