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Finding the Fourth Proportional to 225,580.28, 311,303.86 and 123,603.71

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Solution

The fourth proportional to 225,580.28, 311,303.86 and 123,603.71 is: 170,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,580.28 : 311,303.86 = 123,603.71 : x
  2. Step 2: Convert to fraction form
    225,580.28/311,303.86 = 123,603.71/x
  3. Step 3: Cross multiply
    225,580.28x = 311,303.86 × 123,603.71
  4. Step 4: Simplify right side
    225,580.28x = 38,478,310,167.79
  5. Step 5: Solve for x
    x = 38,478,310,167.79/225,580.28
  6. Step 6: Final answer
    x = 170,574.80

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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.