Home / 217,825.28-300,595.10-121,030.02

Finding the Fourth Proportional to 217,825.28, 300,595.10 and 121,030.02

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Solution

The fourth proportional to 217,825.28, 300,595.10 and 121,030.02 is: 167,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,825.28 : 300,595.10 = 121,030.02 : x
  2. Step 2: Convert to fraction form
    217,825.28/300,595.10 = 121,030.02/x
  3. Step 3: Cross multiply
    217,825.28x = 300,595.10 × 121,030.02
  4. Step 4: Simplify right side
    217,825.28x = 36,381,031,885.97
  5. Step 5: Solve for x
    x = 36,381,031,885.97/217,825.28
  6. Step 6: Final answer
    x = 167,019.33

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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.