Home / 403,445.06-556,732.13-222,122.55

Finding the Fourth Proportional to 403,445.06, 556,732.13 and 222,122.55

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Solution

The fourth proportional to 403,445.06, 556,732.13 and 222,122.55 is: 306,516.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,445.06 : 556,732.13 = 222,122.55 : x
  2. Step 2: Convert to fraction form
    403,445.06/556,732.13 = 222,122.55/x
  3. Step 3: Cross multiply
    403,445.06x = 556,732.13 × 222,122.55
  4. Step 4: Simplify right side
    403,445.06x = 123,662,759,271.92
  5. Step 5: Solve for x
    x = 123,662,759,271.92/403,445.06
  6. Step 6: Final answer
    x = 306,516.98

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1.5x scale

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.