Home / 257,262.07-385,687.03-122,258.39

Finding the Fourth Proportional to 257,262.07, 385,687.03 and 122,258.39

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Solution

The fourth proportional to 257,262.07, 385,687.03 and 122,258.39 is: 183,289.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,262.07 : 385,687.03 = 122,258.39 : x
  2. Step 2: Convert to fraction form
    257,262.07/385,687.03 = 122,258.39/x
  3. Step 3: Cross multiply
    257,262.07x = 385,687.03 × 122,258.39
  4. Step 4: Simplify right side
    257,262.07x = 47,153,475,331.68
  5. Step 5: Solve for x
    x = 47,153,475,331.68/257,262.07
  6. Step 6: Final answer
    x = 183,289.65

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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.