Home / 268,945.54-403,417.08-128,277.70

Finding the Fourth Proportional to 268,945.54, 403,417.08 and 128,277.70

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Solution

The fourth proportional to 268,945.54, 403,417.08 and 128,277.70 is: 192,415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,945.54 : 403,417.08 = 128,277.70 : x
  2. Step 2: Convert to fraction form
    268,945.54/403,417.08 = 128,277.70/x
  3. Step 3: Cross multiply
    268,945.54x = 403,417.08 × 128,277.70
  4. Step 4: Simplify right side
    268,945.54x = 51,749,414,154.57
  5. Step 5: Solve for x
    x = 51,749,414,154.57/268,945.54
  6. Step 6: Final answer
    x = 192,415.96

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1.5x scale

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.