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Finding the Fourth Proportional to 343,961.29, 515,706.43 and 175,154.86

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Solution

The fourth proportional to 343,961.29, 515,706.43 and 175,154.86 is: 262,612.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,961.29 : 515,706.43 = 175,154.86 : x
  2. Step 2: Convert to fraction form
    343,961.29/515,706.43 = 175,154.86/x
  3. Step 3: Cross multiply
    343,961.29x = 515,706.43 × 175,154.86
  4. Step 4: Simplify right side
    343,961.29x = 90,328,487,547.75
  5. Step 5: Solve for x
    x = 90,328,487,547.75/343,961.29
  6. Step 6: Final answer
    x = 262,612.36

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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.