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Finding the Fourth Proportional to 243,095.86, 364,806.87 and 85,324.78

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Solution

The fourth proportional to 243,095.86, 364,806.87 and 85,324.78 is: 128,044.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,095.86 : 364,806.87 = 85,324.78 : x
  2. Step 2: Convert to fraction form
    243,095.86/364,806.87 = 85,324.78/x
  3. Step 3: Cross multiply
    243,095.86x = 364,806.87 × 85,324.78
  4. Step 4: Simplify right side
    243,095.86x = 31,127,065,925.24
  5. Step 5: Solve for x
    x = 31,127,065,925.24/243,095.86
  6. Step 6: Final answer
    x = 128,044.41

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1.5x scale

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.