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Finding the Fourth Proportional to 348,006.80, 520,973.40 and 207,693.20

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Solution

The fourth proportional to 348,006.80, 520,973.40 and 207,693.20 is: 310,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,006.80 : 520,973.40 = 207,693.20 : x
  2. Step 2: Convert to fraction form
    348,006.80/520,973.40 = 207,693.20/x
  3. Step 3: Cross multiply
    348,006.80x = 520,973.40 × 207,693.20
  4. Step 4: Simplify right side
    348,006.80x = 108,202,632,560.88
  5. Step 5: Solve for x
    x = 108,202,632,560.88/348,006.80
  6. Step 6: Final answer
    x = 310,921.03

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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.