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Finding the Fourth Proportional to 438,990.16, 658,480.44 and 106,566.16

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Solution

The fourth proportional to 438,990.16, 658,480.44 and 106,566.16 is: 159,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,990.16 : 658,480.44 = 106,566.16 : x
  2. Step 2: Convert to fraction form
    438,990.16/658,480.44 = 106,566.16/x
  3. Step 3: Cross multiply
    438,990.16x = 658,480.44 × 106,566.16
  4. Step 4: Simplify right side
    438,990.16x = 70,171,731,925.91
  5. Step 5: Solve for x
    x = 70,171,731,925.91/438,990.16
  6. Step 6: Final answer
    x = 159,848.07

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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.