Home / 219,345.28-302,701.92-123,853.36

Finding the Fourth Proportional to 219,345.28, 302,701.92 and 123,853.36

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Solution

The fourth proportional to 219,345.28, 302,701.92 and 123,853.36 is: 170,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,345.28 : 302,701.92 = 123,853.36 : x
  2. Step 2: Convert to fraction form
    219,345.28/302,701.92 = 123,853.36/x
  3. Step 3: Cross multiply
    219,345.28x = 302,701.92 × 123,853.36
  4. Step 4: Simplify right side
    219,345.28x = 37,490,649,870.45
  5. Step 5: Solve for x
    x = 37,490,649,870.45/219,345.28
  6. Step 6: Final answer
    x = 170,920.70

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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.