Home / 210,318.79-314,975.24-121,302.42

Finding the Fourth Proportional to 210,318.79, 314,975.24 and 121,302.42

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Solution

The fourth proportional to 210,318.79, 314,975.24 and 121,302.42 is: 181,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,318.79 : 314,975.24 = 121,302.42 : x
  2. Step 2: Convert to fraction form
    210,318.79/314,975.24 = 121,302.42/x
  3. Step 3: Cross multiply
    210,318.79x = 314,975.24 × 121,302.42
  4. Step 4: Simplify right side
    210,318.79x = 38,207,258,367.90
  5. Step 5: Solve for x
    x = 38,207,258,367.90/210,318.79
  6. Step 6: Final answer
    x = 181,663.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.