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Finding the Fourth Proportional to 257,277.81, 385,881.68 and 67,722.31

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Solution

The fourth proportional to 257,277.81, 385,881.68 and 67,722.31 is: 101,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,277.81 : 385,881.68 = 67,722.31 : x
  2. Step 2: Convert to fraction form
    257,277.81/385,881.68 = 67,722.31/x
  3. Step 3: Cross multiply
    257,277.81x = 385,881.68 × 67,722.31
  4. Step 4: Simplify right side
    257,277.81x = 26,132,798,756.28
  5. Step 5: Solve for x
    x = 26,132,798,756.28/257,277.81
  6. Step 6: Final answer
    x = 101,574.24

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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.