Home / 424,152.43-636,212.03-143,669.67

Finding the Fourth Proportional to 424,152.43, 636,212.03 and 143,669.67

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Solution

The fourth proportional to 424,152.43, 636,212.03 and 143,669.67 is: 215,498.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,152.43 : 636,212.03 = 143,669.67 : x
  2. Step 2: Convert to fraction form
    424,152.43/636,212.03 = 143,669.67/x
  3. Step 3: Cross multiply
    424,152.43x = 636,212.03 × 143,669.67
  4. Step 4: Simplify right side
    424,152.43x = 91,404,371,681.78
  5. Step 5: Solve for x
    x = 91,404,371,681.78/424,152.43
  6. Step 6: Final answer
    x = 215,498.88

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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.