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Finding the Fourth Proportional to 347,272.20, 520,908.30 and 84,616.20

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Solution

The fourth proportional to 347,272.20, 520,908.30 and 84,616.20 is: 126,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,272.20 : 520,908.30 = 84,616.20 : x
  2. Step 2: Convert to fraction form
    347,272.20/520,908.30 = 84,616.20/x
  3. Step 3: Cross multiply
    347,272.20x = 520,908.30 × 84,616.20
  4. Step 4: Simplify right side
    347,272.20x = 44,077,280,894.46
  5. Step 5: Solve for x
    x = 44,077,280,894.46/347,272.20
  6. Step 6: Final answer
    x = 126,924.30

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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.