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Finding the Fourth Proportional to 403,094.64, 556,274.55 and 221,810.47

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Solution

The fourth proportional to 403,094.64, 556,274.55 and 221,810.47 is: 306,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,094.64 : 556,274.55 = 221,810.47 : x
  2. Step 2: Convert to fraction form
    403,094.64/556,274.55 = 221,810.47/x
  3. Step 3: Cross multiply
    403,094.64x = 556,274.55 × 221,810.47
  4. Step 4: Simplify right side
    403,094.64x = 123,387,515,494.11
  5. Step 5: Solve for x
    x = 123,387,515,494.11/403,094.64
  6. Step 6: Final answer
    x = 306,100.61

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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.