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Finding the Fourth Proportional to 162,430.48, 243,718.44 and 103,250.80

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Solution

The fourth proportional to 162,430.48, 243,718.44 and 103,250.80 is: 154,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,430.48 : 243,718.44 = 103,250.80 : x
  2. Step 2: Convert to fraction form
    162,430.48/243,718.44 = 103,250.80/x
  3. Step 3: Cross multiply
    162,430.48x = 243,718.44 × 103,250.80
  4. Step 4: Simplify right side
    162,430.48x = 25,164,123,904.75
  5. Step 5: Solve for x
    x = 25,164,123,904.75/162,430.48
  6. Step 6: Final answer
    x = 154,922.43

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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.