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Finding the Fourth Proportional to 323,531.10, 485,350.11 and 146,034.18

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Solution

The fourth proportional to 323,531.10, 485,350.11 and 146,034.18 is: 219,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,531.10 : 485,350.11 = 146,034.18 : x
  2. Step 2: Convert to fraction form
    323,531.10/485,350.11 = 146,034.18/x
  3. Step 3: Cross multiply
    323,531.10x = 485,350.11 × 146,034.18
  4. Step 4: Simplify right side
    323,531.10x = 70,877,705,326.76
  5. Step 5: Solve for x
    x = 70,877,705,326.76/323,531.10
  6. Step 6: Final answer
    x = 219,075.40

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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.