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Finding the Fourth Proportional to 347,363.51, 520,773.08 and 137,158.79

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Solution

The fourth proportional to 347,363.51, 520,773.08 and 137,158.79 is: 205,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,363.51 : 520,773.08 = 137,158.79 : x
  2. Step 2: Convert to fraction form
    347,363.51/520,773.08 = 137,158.79/x
  3. Step 3: Cross multiply
    347,363.51x = 520,773.08 × 137,158.79
  4. Step 4: Simplify right side
    347,363.51x = 71,428,606,133.51
  5. Step 5: Solve for x
    x = 71,428,606,133.51/347,363.51
  6. Step 6: Final answer
    x = 205,630.71

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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.