Home / 399,325.28-551,003.84-235,959.05

Finding the Fourth Proportional to 399,325.28, 551,003.84 and 235,959.05

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Solution

The fourth proportional to 399,325.28, 551,003.84 and 235,959.05 is: 325,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,325.28 : 551,003.84 = 235,959.05 : x
  2. Step 2: Convert to fraction form
    399,325.28/551,003.84 = 235,959.05/x
  3. Step 3: Cross multiply
    399,325.28x = 551,003.84 × 235,959.05
  4. Step 4: Simplify right side
    399,325.28x = 130,014,338,697.94
  5. Step 5: Solve for x
    x = 130,014,338,697.94/399,325.28
  6. Step 6: Final answer
    x = 325,585.05

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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.