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Finding the Fourth Proportional to 409,630.60, 614,445.90 and 173,240.20

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Solution

The fourth proportional to 409,630.60, 614,445.90 and 173,240.20 is: 259,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,630.60 : 614,445.90 = 173,240.20 : x
  2. Step 2: Convert to fraction form
    409,630.60/614,445.90 = 173,240.20/x
  3. Step 3: Cross multiply
    409,630.60x = 614,445.90 × 173,240.20
  4. Step 4: Simplify right side
    409,630.60x = 106,446,730,605.18
  5. Step 5: Solve for x
    x = 106,446,730,605.18/409,630.60
  6. Step 6: Final answer
    x = 259,860.30

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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.