Home / 403,180.04-556,367.70-221,909.18

Finding the Fourth Proportional to 403,180.04, 556,367.70 and 221,909.18

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Solution

The fourth proportional to 403,180.04, 556,367.70 and 221,909.18 is: 306,223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,180.04 : 556,367.70 = 221,909.18 : x
  2. Step 2: Convert to fraction form
    403,180.04/556,367.70 = 221,909.18/x
  3. Step 3: Cross multiply
    403,180.04x = 556,367.70 × 221,909.18
  4. Step 4: Simplify right side
    403,180.04x = 123,463,097,303.65
  5. Step 5: Solve for x
    x = 123,463,097,303.65/403,180.04
  6. Step 6: Final answer
    x = 306,223.24

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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.