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Finding the Fourth Proportional to 343,967.30, 515,715.42 and 175,160.86

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Solution

The fourth proportional to 343,967.30, 515,715.42 and 175,160.86 is: 262,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,967.30 : 515,715.42 = 175,160.86 : x
  2. Step 2: Convert to fraction form
    343,967.30/515,715.42 = 175,160.86/x
  3. Step 3: Cross multiply
    343,967.30x = 515,715.42 × 175,160.86
  4. Step 4: Simplify right side
    343,967.30x = 90,333,156,482.46
  5. Step 5: Solve for x
    x = 90,333,156,482.46/343,967.30
  6. Step 6: Final answer
    x = 262,621.35

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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.