Home / 218,814.36-328,276.89-61,042.74

Finding the Fourth Proportional to 218,814.36, 328,276.89 and 61,042.74

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Solution

The fourth proportional to 218,814.36, 328,276.89 and 61,042.74 is: 91,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,814.36 : 328,276.89 = 61,042.74 : x
  2. Step 2: Convert to fraction form
    218,814.36/328,276.89 = 61,042.74/x
  3. Step 3: Cross multiply
    218,814.36x = 328,276.89 × 61,042.74
  4. Step 4: Simplify right side
    218,814.36x = 20,038,920,844.28
  5. Step 5: Solve for x
    x = 20,038,920,844.28/218,814.36
  6. Step 6: Final answer
    x = 91,579.55

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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.