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Finding the Fourth Proportional to 246,480.47, 369,683.69 and 77,978.89

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Solution

The fourth proportional to 246,480.47, 369,683.69 and 77,978.89 is: 116,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,480.47 : 369,683.69 = 77,978.89 : x
  2. Step 2: Convert to fraction form
    246,480.47/369,683.69 = 77,978.89/x
  3. Step 3: Cross multiply
    246,480.47x = 369,683.69 × 77,978.89
  4. Step 4: Simplify right side
    246,480.47x = 28,827,523,797.30
  5. Step 5: Solve for x
    x = 28,827,523,797.30/246,480.47
  6. Step 6: Final answer
    x = 116,956.62

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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.