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Finding the Fourth Proportional to 369,077.60, 552,304.20 and 256,228.40

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Solution

The fourth proportional to 369,077.60, 552,304.20 and 256,228.40 is: 383,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,077.60 : 552,304.20 = 256,228.40 : x
  2. Step 2: Convert to fraction form
    369,077.60/552,304.20 = 256,228.40/x
  3. Step 3: Cross multiply
    369,077.60x = 552,304.20 × 256,228.40
  4. Step 4: Simplify right side
    369,077.60x = 141,516,021,479.28
  5. Step 5: Solve for x
    x = 141,516,021,479.28/369,077.60
  6. Step 6: Final answer
    x = 383,431.62

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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.