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Finding the Fourth Proportional to 150,360.82, 207,498.10 and 81,450.45

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Solution

The fourth proportional to 150,360.82, 207,498.10 and 81,450.45 is: 112,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,360.82 : 207,498.10 = 81,450.45 : x
  2. Step 2: Convert to fraction form
    150,360.82/207,498.10 = 81,450.45/x
  3. Step 3: Cross multiply
    150,360.82x = 207,498.10 × 81,450.45
  4. Step 4: Simplify right side
    150,360.82x = 16,900,812,174.40
  5. Step 5: Solve for x
    x = 16,900,812,174.40/150,360.82
  6. Step 6: Final answer
    x = 112,401.70

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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.