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Finding the Fourth Proportional to 220,577.70, 330,866.55 and 141,845.70

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Solution

The fourth proportional to 220,577.70, 330,866.55 and 141,845.70 is: 212,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,577.70 : 330,866.55 = 141,845.70 : x
  2. Step 2: Convert to fraction form
    220,577.70/330,866.55 = 141,845.70/x
  3. Step 3: Cross multiply
    220,577.70x = 330,866.55 × 141,845.70
  4. Step 4: Simplify right side
    220,577.70x = 46,931,997,391.34
  5. Step 5: Solve for x
    x = 46,931,997,391.34/220,577.70
  6. Step 6: Final answer
    x = 212,768.55

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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.