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Finding the Fourth Proportional to 150,360.54, 207,495.78 and 81,448.70

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Solution

The fourth proportional to 150,360.54, 207,495.78 and 81,448.70 is: 112,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,360.54 : 207,495.78 = 81,448.70 : x
  2. Step 2: Convert to fraction form
    150,360.54/207,495.78 = 81,448.70/x
  3. Step 3: Cross multiply
    150,360.54x = 207,495.78 × 81,448.70
  4. Step 4: Simplify right side
    150,360.54x = 16,900,261,536.49
  5. Step 5: Solve for x
    x = 16,900,261,536.49/150,360.54
  6. Step 6: Final answer
    x = 112,398.25

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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.