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Finding the Fourth Proportional to 147,995.80, 222,009.90 and 143,330.20

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Solution

The fourth proportional to 147,995.80, 222,009.90 and 143,330.20 is: 215,010.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,995.80 : 222,009.90 = 143,330.20 : x
  2. Step 2: Convert to fraction form
    147,995.80/222,009.90 = 143,330.20/x
  3. Step 3: Cross multiply
    147,995.80x = 222,009.90 × 143,330.20
  4. Step 4: Simplify right side
    147,995.80x = 31,820,723,368.98
  5. Step 5: Solve for x
    x = 31,820,723,368.98/147,995.80
  6. Step 6: Final answer
    x = 215,010.99

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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.