Home / 403,019.42-556,166.77-221,727.46

Finding the Fourth Proportional to 403,019.42, 556,166.77 and 221,727.46

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Solution

The fourth proportional to 403,019.42, 556,166.77 and 221,727.46 is: 305,983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,019.42 : 556,166.77 = 221,727.46 : x
  2. Step 2: Convert to fraction form
    403,019.42/556,166.77 = 221,727.46/x
  3. Step 3: Cross multiply
    403,019.42x = 556,166.77 × 221,727.46
  4. Step 4: Simplify right side
    403,019.42x = 123,317,445,248.50
  5. Step 5: Solve for x
    x = 123,317,445,248.50/403,019.42
  6. Step 6: Final answer
    x = 305,983.88

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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.