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Finding the Fourth Proportional to 438,069.60, 656,950.80 and 227,637.60

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Solution

The fourth proportional to 438,069.60, 656,950.80 and 227,637.60 is: 341,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,069.60 : 656,950.80 = 227,637.60 : x
  2. Step 2: Convert to fraction form
    438,069.60/656,950.80 = 227,637.60/x
  3. Step 3: Cross multiply
    438,069.60x = 656,950.80 × 227,637.60
  4. Step 4: Simplify right side
    438,069.60x = 149,546,703,430.08
  5. Step 5: Solve for x
    x = 149,546,703,430.08/438,069.60
  6. Step 6: Final answer
    x = 341,376.58

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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.