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Finding the Fourth Proportional to 368,691.51, 508,951.56 and 247,902.81

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Solution

The fourth proportional to 368,691.51, 508,951.56 and 247,902.81 is: 342,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,691.51 : 508,951.56 = 247,902.81 : x
  2. Step 2: Convert to fraction form
    368,691.51/508,951.56 = 247,902.81/x
  3. Step 3: Cross multiply
    368,691.51x = 508,951.56 × 247,902.81
  4. Step 4: Simplify right side
    368,691.51x = 126,170,520,638.37
  5. Step 5: Solve for x
    x = 126,170,520,638.37/368,691.51
  6. Step 6: Final answer
    x = 342,211.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.