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Finding the Fourth Proportional to 276,778.80, 415,945.80 and 242,564.40

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Solution

The fourth proportional to 276,778.80, 415,945.80 and 242,564.40 is: 364,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,778.80 : 415,945.80 = 242,564.40 : x
  2. Step 2: Convert to fraction form
    276,778.80/415,945.80 = 242,564.40/x
  3. Step 3: Cross multiply
    276,778.80x = 415,945.80 × 242,564.40
  4. Step 4: Simplify right side
    276,778.80x = 100,893,643,409.52
  5. Step 5: Solve for x
    x = 100,893,643,409.52/276,778.80
  6. Step 6: Final answer
    x = 364,528.08

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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.