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Finding the Fourth Proportional to 226,356.68, 312,372.16 and 124,388.72

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Solution

The fourth proportional to 226,356.68, 312,372.16 and 124,388.72 is: 171,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,356.68 : 312,372.16 = 124,388.72 : x
  2. Step 2: Convert to fraction form
    226,356.68/312,372.16 = 124,388.72/x
  3. Step 3: Cross multiply
    226,356.68x = 312,372.16 × 124,388.72
  4. Step 4: Simplify right side
    226,356.68x = 38,855,573,146.04
  5. Step 5: Solve for x
    x = 38,855,573,146.04/226,356.68
  6. Step 6: Final answer
    x = 171,656.40

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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.