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Finding the Fourth Proportional to 247,152.78, 370,472.31 and 105,089.22

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Solution

The fourth proportional to 247,152.78, 370,472.31 and 105,089.22 is: 157,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,152.78 : 370,472.31 = 105,089.22 : x
  2. Step 2: Convert to fraction form
    247,152.78/370,472.31 = 105,089.22/x
  3. Step 3: Cross multiply
    247,152.78x = 370,472.31 × 105,089.22
  4. Step 4: Simplify right side
    247,152.78x = 38,932,646,089.50
  5. Step 5: Solve for x
    x = 38,932,646,089.50/247,152.78
  6. Step 6: Final answer
    x = 157,524.61

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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.