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Finding the Fourth Proportional to 173,215.80, 259,910.10 and 98,393.40

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Solution

The fourth proportional to 173,215.80, 259,910.10 and 98,393.40 is: 147,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,215.80 : 259,910.10 = 98,393.40 : x
  2. Step 2: Convert to fraction form
    173,215.80/259,910.10 = 98,393.40/x
  3. Step 3: Cross multiply
    173,215.80x = 259,910.10 × 98,393.40
  4. Step 4: Simplify right side
    173,215.80x = 25,573,438,433.34
  5. Step 5: Solve for x
    x = 25,573,438,433.34/173,215.80
  6. Step 6: Final answer
    x = 147,639.18

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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.