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Finding the Fourth Proportional to 220,875.52, 304,811.76 and 120,273.52

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Solution

The fourth proportional to 220,875.52, 304,811.76 and 120,273.52 is: 165,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,875.52 : 304,811.76 = 120,273.52 : x
  2. Step 2: Convert to fraction form
    220,875.52/304,811.76 = 120,273.52/x
  3. Step 3: Cross multiply
    220,875.52x = 304,811.76 × 120,273.52
  4. Step 4: Simplify right side
    220,875.52x = 36,660,783,312.60
  5. Step 5: Solve for x
    x = 36,660,783,312.60/220,875.52
  6. Step 6: Final answer
    x = 165,979.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.