Home / 315,769.17-435,756.36-172,526.13

Finding the Fourth Proportional to 315,769.17, 435,756.36 and 172,526.13

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Solution

The fourth proportional to 315,769.17, 435,756.36 and 172,526.13 is: 238,083.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,769.17 : 435,756.36 = 172,526.13 : x
  2. Step 2: Convert to fraction form
    315,769.17/435,756.36 = 172,526.13/x
  3. Step 3: Cross multiply
    315,769.17x = 435,756.36 × 172,526.13
  4. Step 4: Simplify right side
    315,769.17x = 75,179,358,413.69
  5. Step 5: Solve for x
    x = 75,179,358,413.69/315,769.17
  6. Step 6: Final answer
    x = 238,083.28

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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.