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Finding the Fourth Proportional to 453,432.40, 680,119.80 and 153,912.40

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Solution

The fourth proportional to 453,432.40, 680,119.80 and 153,912.40 is: 230,858.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,432.40 : 680,119.80 = 153,912.40 : x
  2. Step 2: Convert to fraction form
    453,432.40/680,119.80 = 153,912.40/x
  3. Step 3: Cross multiply
    453,432.40x = 680,119.80 × 153,912.40
  4. Step 4: Simplify right side
    453,432.40x = 104,678,870,705.52
  5. Step 5: Solve for x
    x = 104,678,870,705.52/453,432.40
  6. Step 6: Final answer
    x = 230,858.82

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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.