Home / 403,429.65-556,737.05-222,158.43

Finding the Fourth Proportional to 403,429.65, 556,737.05 and 222,158.43

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Solution

The fourth proportional to 403,429.65, 556,737.05 and 222,158.43 is: 306,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,429.65 : 556,737.05 = 222,158.43 : x
  2. Step 2: Convert to fraction form
    403,429.65/556,737.05 = 222,158.43/x
  3. Step 3: Cross multiply
    403,429.65x = 556,737.05 × 222,158.43
  4. Step 4: Simplify right side
    403,429.65x = 123,683,827,840.04
  5. Step 5: Solve for x
    x = 123,683,827,840.04/403,429.65
  6. Step 6: Final answer
    x = 306,580.91

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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.