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Finding the Fourth Proportional to 479,374.08, 719,130.24 and 146,976

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Solution

The fourth proportional to 479,374.08, 719,130.24 and 146,976 is: 220,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,374.08 : 719,130.24 = 146,976 : x
  2. Step 2: Convert to fraction form
    479,374.08/719,130.24 = 146,976/x
  3. Step 3: Cross multiply
    479,374.08x = 719,130.24 × 146,976
  4. Step 4: Simplify right side
    479,374.08x = 105,694,886,154.24
  5. Step 5: Solve for x
    x = 105,694,886,154.24/479,374.08
  6. Step 6: Final answer
    x = 220,485.19

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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.