Home / 315,802.48-435,837.90-172,584.22

Finding the Fourth Proportional to 315,802.48, 435,837.90 and 172,584.22

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Solution

The fourth proportional to 315,802.48, 435,837.90 and 172,584.22 is: 238,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,802.48 : 435,837.90 = 172,584.22 : x
  2. Step 2: Convert to fraction form
    315,802.48/435,837.90 = 172,584.22/x
  3. Step 3: Cross multiply
    315,802.48x = 435,837.90 × 172,584.22
  4. Step 4: Simplify right side
    315,802.48x = 75,218,744,017.94
  5. Step 5: Solve for x
    x = 75,218,744,017.94/315,802.48
  6. Step 6: Final answer
    x = 238,182.88

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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.