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Finding the Fourth Proportional to 605,881.20, 908,821.80 and 179,432.40

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Solution

The fourth proportional to 605,881.20, 908,821.80 and 179,432.40 is: 269,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,881.20 : 908,821.80 = 179,432.40 : x
  2. Step 2: Convert to fraction form
    605,881.20/908,821.80 = 179,432.40/x
  3. Step 3: Cross multiply
    605,881.20x = 908,821.80 × 179,432.40
  4. Step 4: Simplify right side
    605,881.20x = 163,072,076,746.32
  5. Step 5: Solve for x
    x = 163,072,076,746.32/605,881.20
  6. Step 6: Final answer
    x = 269,148.60

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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.