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Finding the Fourth Proportional to 348,006.80, 520,843.80 and 243,030.80

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Solution

The fourth proportional to 348,006.80, 520,843.80 and 243,030.80 is: 363,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,006.80 : 520,843.80 = 243,030.80 : x
  2. Step 2: Convert to fraction form
    348,006.80/520,843.80 = 243,030.80/x
  3. Step 3: Cross multiply
    348,006.80x = 520,843.80 × 243,030.80
  4. Step 4: Simplify right side
    348,006.80x = 126,581,085,389.04
  5. Step 5: Solve for x
    x = 126,581,085,389.04/348,006.80
  6. Step 6: Final answer
    x = 363,731.64

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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.