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Finding the Fourth Proportional to 247,219.72, 369,910.98 and 147,434.20

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Solution

The fourth proportional to 247,219.72, 369,910.98 and 147,434.20 is: 220,603.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,219.72 : 369,910.98 = 147,434.20 : x
  2. Step 2: Convert to fraction form
    247,219.72/369,910.98 = 147,434.20/x
  3. Step 3: Cross multiply
    247,219.72x = 369,910.98 × 147,434.20
  4. Step 4: Simplify right side
    247,219.72x = 54,537,529,407.52
  5. Step 5: Solve for x
    x = 54,537,529,407.52/247,219.72
  6. Step 6: Final answer
    x = 220,603.48

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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.