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Finding the Fourth Proportional to 343,449.40, 514,810.50 and 115,528.05

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Solution

The fourth proportional to 343,449.40, 514,810.50 and 115,528.05 is: 173,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,449.40 : 514,810.50 = 115,528.05 : x
  2. Step 2: Convert to fraction form
    343,449.40/514,810.50 = 115,528.05/x
  3. Step 3: Cross multiply
    343,449.40x = 514,810.50 × 115,528.05
  4. Step 4: Simplify right side
    343,449.40x = 59,475,053,184.53
  5. Step 5: Solve for x
    x = 59,475,053,184.53/343,449.40
  6. Step 6: Final answer
    x = 173,169.77

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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.