Home / 313,001.06-469,535.40-99,718.65

Finding the Fourth Proportional to 313,001.06, 469,535.40 and 99,718.65

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Solution

The fourth proportional to 313,001.06, 469,535.40 and 99,718.65 is: 149,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,001.06 : 469,535.40 = 99,718.65 : x
  2. Step 2: Convert to fraction form
    313,001.06/469,535.40 = 99,718.65/x
  3. Step 3: Cross multiply
    313,001.06x = 469,535.40 × 99,718.65
  4. Step 4: Simplify right side
    313,001.06x = 46,821,436,215.21
  5. Step 5: Solve for x
    x = 46,821,436,215.21/313,001.06
  6. Step 6: Final answer
    x = 149,588.75

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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.