Home / 429,338.28-643,291.02-189,094.44

Finding the Fourth Proportional to 429,338.28, 643,291.02 and 189,094.44

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Solution

The fourth proportional to 429,338.28, 643,291.02 and 189,094.44 is: 283,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,338.28 : 643,291.02 = 189,094.44 : x
  2. Step 2: Convert to fraction form
    429,338.28/643,291.02 = 189,094.44/x
  3. Step 3: Cross multiply
    429,338.28x = 643,291.02 × 189,094.44
  4. Step 4: Simplify right side
    429,338.28x = 121,642,755,183.93
  5. Step 5: Solve for x
    x = 121,642,755,183.93/429,338.28
  6. Step 6: Final answer
    x = 283,326.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.