Home / 403,178.19-556,374.70-228,780.16

Finding the Fourth Proportional to 403,178.19, 556,374.70 and 228,780.16

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Solution

The fourth proportional to 403,178.19, 556,374.70 and 228,780.16 is: 315,710.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,178.19 : 556,374.70 = 228,780.16 : x
  2. Step 2: Convert to fraction form
    403,178.19/556,374.70 = 228,780.16/x
  3. Step 3: Cross multiply
    403,178.19x = 556,374.70 × 228,780.16
  4. Step 4: Simplify right side
    403,178.19x = 127,287,491,780.99
  5. Step 5: Solve for x
    x = 127,287,491,780.99/403,178.19
  6. Step 6: Final answer
    x = 315,710.26

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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.