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Finding the Fourth Proportional to 423,453.56, 634,697.16 and 170,572.22

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Solution

The fourth proportional to 423,453.56, 634,697.16 and 170,572.22 is: 255,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,453.56 : 634,697.16 = 170,572.22 : x
  2. Step 2: Convert to fraction form
    423,453.56/634,697.16 = 170,572.22/x
  3. Step 3: Cross multiply
    423,453.56x = 634,697.16 × 170,572.22
  4. Step 4: Simplify right side
    423,453.56x = 108,261,703,608.90
  5. Step 5: Solve for x
    x = 108,261,703,608.90/423,453.56
  6. Step 6: Final answer
    x = 255,663.70

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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.