Home / 424,401.96-636,666.08-140,122.54

Finding the Fourth Proportional to 424,401.96, 636,666.08 and 140,122.54

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Solution

The fourth proportional to 424,401.96, 636,666.08 and 140,122.54 is: 210,204.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,401.96 : 636,666.08 = 140,122.54 : x
  2. Step 2: Convert to fraction form
    424,401.96/636,666.08 = 140,122.54/x
  3. Step 3: Cross multiply
    424,401.96x = 636,666.08 × 140,122.54
  4. Step 4: Simplify right side
    424,401.96x = 89,211,270,358.22
  5. Step 5: Solve for x
    x = 89,211,270,358.22/424,401.96
  6. Step 6: Final answer
    x = 210,204.66

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1.5x scale

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.