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Finding the Fourth Proportional to 225,598.79, 311,296.64 and 134,921.66

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Solution

The fourth proportional to 225,598.79, 311,296.64 and 134,921.66 is: 186,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,598.79 : 311,296.64 = 134,921.66 : x
  2. Step 2: Convert to fraction form
    225,598.79/311,296.64 = 134,921.66/x
  3. Step 3: Cross multiply
    225,598.79x = 311,296.64 × 134,921.66
  4. Step 4: Simplify right side
    225,598.79x = 42,000,657,190.13
  5. Step 5: Solve for x
    x = 42,000,657,190.13/225,598.79
  6. Step 6: Final answer
    x = 186,174.13

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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.