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Finding the Fourth Proportional to 310,250.30, 428,098.77 and 174,258.18

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Solution

The fourth proportional to 310,250.30, 428,098.77 and 174,258.18 is: 240,450.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,250.30 : 428,098.77 = 174,258.18 : x
  2. Step 2: Convert to fraction form
    310,250.30/428,098.77 = 174,258.18/x
  3. Step 3: Cross multiply
    310,250.30x = 428,098.77 × 174,258.18
  4. Step 4: Simplify right side
    310,250.30x = 74,599,712,520.44
  5. Step 5: Solve for x
    x = 74,599,712,520.44/310,250.30
  6. Step 6: Final answer
    x = 240,450.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.