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Finding the Fourth Proportional to 225,014.90, 310,519.78 and 124,412.90

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Solution

The fourth proportional to 225,014.90, 310,519.78 and 124,412.90 is: 171,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,014.90 : 310,519.78 = 124,412.90 : x
  2. Step 2: Convert to fraction form
    225,014.90/310,519.78 = 124,412.90/x
  3. Step 3: Cross multiply
    225,014.90x = 310,519.78 × 124,412.90
  4. Step 4: Simplify right side
    225,014.90x = 38,632,664,473.53
  5. Step 5: Solve for x
    x = 38,632,664,473.53/225,014.90
  6. Step 6: Final answer
    x = 171,689.37

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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.