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Finding the Fourth Proportional to 225,460.61, 311,139.02 and 123,495.49

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Solution

The fourth proportional to 225,460.61, 311,139.02 and 123,495.49 is: 170,425.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,460.61 : 311,139.02 = 123,495.49 : x
  2. Step 2: Convert to fraction form
    225,460.61/311,139.02 = 123,495.49/x
  3. Step 3: Cross multiply
    225,460.61x = 311,139.02 × 123,495.49
  4. Step 4: Simplify right side
    225,460.61x = 38,424,264,680.53
  5. Step 5: Solve for x
    x = 38,424,264,680.53/225,460.61
  6. Step 6: Final answer
    x = 170,425.62

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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.