Home / 221,266.16-305,395.65-140,677.94

Finding the Fourth Proportional to 221,266.16, 305,395.65 and 140,677.94

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Solution

The fourth proportional to 221,266.16, 305,395.65 and 140,677.94 is: 194,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,266.16 : 305,395.65 = 140,677.94 : x
  2. Step 2: Convert to fraction form
    221,266.16/305,395.65 = 140,677.94/x
  3. Step 3: Cross multiply
    221,266.16x = 305,395.65 × 140,677.94
  4. Step 4: Simplify right side
    221,266.16x = 42,962,431,690.45
  5. Step 5: Solve for x
    x = 42,962,431,690.45/221,266.16
  6. Step 6: Final answer
    x = 194,166.30

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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.