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Finding the Fourth Proportional to 347,365.76, 520,776.45 and 137,161.04

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Solution

The fourth proportional to 347,365.76, 520,776.45 and 137,161.04 is: 205,634.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,365.76 : 520,776.45 = 137,161.04 : x
  2. Step 2: Convert to fraction form
    347,365.76/520,776.45 = 137,161.04/x
  3. Step 3: Cross multiply
    347,365.76x = 520,776.45 × 137,161.04
  4. Step 4: Simplify right side
    347,365.76x = 71,430,239,489.51
  5. Step 5: Solve for x
    x = 71,430,239,489.51/347,365.76
  6. Step 6: Final answer
    x = 205,634.08

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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.