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Finding the Fourth Proportional to 474,667.08, 711,889.86 and 137,617.28

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Solution

The fourth proportional to 474,667.08, 711,889.86 and 137,617.28 is: 206,393.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,667.08 : 711,889.86 = 137,617.28 : x
  2. Step 2: Convert to fraction form
    474,667.08/711,889.86 = 137,617.28/x
  3. Step 3: Cross multiply
    474,667.08x = 711,889.86 × 137,617.28
  4. Step 4: Simplify right side
    474,667.08x = 97,968,346,192.78
  5. Step 5: Solve for x
    x = 97,968,346,192.78/474,667.08
  6. Step 6: Final answer
    x = 206,393.81

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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.