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Finding the Fourth Proportional to 265,871.34, 398,884.23 and 85,952.93

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Solution

The fourth proportional to 265,871.34, 398,884.23 and 85,952.93 is: 128,954.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,871.34 : 398,884.23 = 85,952.93 : x
  2. Step 2: Convert to fraction form
    265,871.34/398,884.23 = 85,952.93/x
  3. Step 3: Cross multiply
    265,871.34x = 398,884.23 × 85,952.93
  4. Step 4: Simplify right side
    265,871.34x = 34,285,266,304.87
  5. Step 5: Solve for x
    x = 34,285,266,304.87/265,871.34
  6. Step 6: Final answer
    x = 128,954.35

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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.