Home / 221,070.25-305,126.15-140,482.03

Finding the Fourth Proportional to 221,070.25, 305,126.15 and 140,482.03

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Solution

The fourth proportional to 221,070.25, 305,126.15 and 140,482.03 is: 193,896.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,070.25 : 305,126.15 = 140,482.03 : x
  2. Step 2: Convert to fraction form
    221,070.25/305,126.15 = 140,482.03/x
  3. Step 3: Cross multiply
    221,070.25x = 305,126.15 × 140,482.03
  4. Step 4: Simplify right side
    221,070.25x = 42,864,740,958.08
  5. Step 5: Solve for x
    x = 42,864,740,958.08/221,070.25
  6. Step 6: Final answer
    x = 193,896.47

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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.