Home / 438,302.26-657,857.50-222,312.59

Finding the Fourth Proportional to 438,302.26, 657,857.50 and 222,312.59

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Solution

The fourth proportional to 438,302.26, 657,857.50 and 222,312.59 is: 333,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,302.26 : 657,857.50 = 222,312.59 : x
  2. Step 2: Convert to fraction form
    438,302.26/657,857.50 = 222,312.59/x
  3. Step 3: Cross multiply
    438,302.26x = 657,857.50 × 222,312.59
  4. Step 4: Simplify right side
    438,302.26x = 146,250,001,919.72
  5. Step 5: Solve for x
    x = 146,250,001,919.72/438,302.26
  6. Step 6: Final answer
    x = 333,673.85

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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.