Home / 221,476.48-305,633.28-120,875.20

Finding the Fourth Proportional to 221,476.48, 305,633.28 and 120,875.20

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Solution

The fourth proportional to 221,476.48, 305,633.28 and 120,875.20 is: 166,805.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,476.48 : 305,633.28 = 120,875.20 : x
  2. Step 2: Convert to fraction form
    221,476.48/305,633.28 = 120,875.20/x
  3. Step 3: Cross multiply
    221,476.48x = 305,633.28 × 120,875.20
  4. Step 4: Simplify right side
    221,476.48x = 36,943,483,846.66
  5. Step 5: Solve for x
    x = 36,943,483,846.66/221,476.48
  6. Step 6: Final answer
    x = 166,805.45

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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.