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Finding the Fourth Proportional to 343,360.76, 514,868.81 and 163,392.53

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Solution

The fourth proportional to 343,360.76, 514,868.81 and 163,392.53 is: 245,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,360.76 : 514,868.81 = 163,392.53 : x
  2. Step 2: Convert to fraction form
    343,360.76/514,868.81 = 163,392.53/x
  3. Step 3: Cross multiply
    343,360.76x = 514,868.81 × 163,392.53
  4. Step 4: Simplify right side
    343,360.76x = 84,125,714,092.68
  5. Step 5: Solve for x
    x = 84,125,714,092.68/343,360.76
  6. Step 6: Final answer
    x = 245,006.78

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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.