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Finding the Fourth Proportional to 343,792.56, 515,689 and 107,154.32

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Solution

The fourth proportional to 343,792.56, 515,689 and 107,154.32 is: 160,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,792.56 : 515,689 = 107,154.32 : x
  2. Step 2: Convert to fraction form
    343,792.56/515,689 = 107,154.32/x
  3. Step 3: Cross multiply
    343,792.56x = 515,689 × 107,154.32
  4. Step 4: Simplify right side
    343,792.56x = 55,258,304,126.48
  5. Step 5: Solve for x
    x = 55,258,304,126.48/343,792.56
  6. Step 6: Final answer
    x = 160,731.53

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1.5x scale

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.