Home / 220,918.65-304,856.87-125,412.81

Finding the Fourth Proportional to 220,918.65, 304,856.87 and 125,412.81

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Solution

The fourth proportional to 220,918.65, 304,856.87 and 125,412.81 is: 173,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,918.65 : 304,856.87 = 125,412.81 : x
  2. Step 2: Convert to fraction form
    220,918.65/304,856.87 = 125,412.81/x
  3. Step 3: Cross multiply
    220,918.65x = 304,856.87 × 125,412.81
  4. Step 4: Simplify right side
    220,918.65x = 38,232,956,714.50
  5. Step 5: Solve for x
    x = 38,232,956,714.50/220,918.65
  6. Step 6: Final answer
    x = 173,063.51

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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.