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Finding the Fourth Proportional to 307,101.78, 460,387.80 and 124,756.20

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Solution

The fourth proportional to 307,101.78, 460,387.80 and 124,756.20 is: 187,026.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,101.78 : 460,387.80 = 124,756.20 : x
  2. Step 2: Convert to fraction form
    307,101.78/460,387.80 = 124,756.20/x
  3. Step 3: Cross multiply
    307,101.78x = 460,387.80 × 124,756.20
  4. Step 4: Simplify right side
    307,101.78x = 57,436,232,454.36
  5. Step 5: Solve for x
    x = 57,436,232,454.36/307,101.78
  6. Step 6: Final answer
    x = 187,026.70

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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.