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Finding the Fourth Proportional to 220,659.82, 304,420.35 and 153,630.70

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Solution

The fourth proportional to 220,659.82, 304,420.35 and 153,630.70 is: 211,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,659.82 : 304,420.35 = 153,630.70 : x
  2. Step 2: Convert to fraction form
    220,659.82/304,420.35 = 153,630.70/x
  3. Step 3: Cross multiply
    220,659.82x = 304,420.35 × 153,630.70
  4. Step 4: Simplify right side
    220,659.82x = 46,768,311,464.75
  5. Step 5: Solve for x
    x = 46,768,311,464.75/220,659.82
  6. Step 6: Final answer
    x = 211,947.56

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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.