Home / 312,424.10-468,281.82-143,595.60

Finding the Fourth Proportional to 312,424.10, 468,281.82 and 143,595.60

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Solution

The fourth proportional to 312,424.10, 468,281.82 and 143,595.60 is: 215,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,424.10 : 468,281.82 = 143,595.60 : x
  2. Step 2: Convert to fraction form
    312,424.10/468,281.82 = 143,595.60/x
  3. Step 3: Cross multiply
    312,424.10x = 468,281.82 × 143,595.60
  4. Step 4: Simplify right side
    312,424.10x = 67,243,207,694.42
  5. Step 5: Solve for x
    x = 67,243,207,694.42/312,424.10
  6. Step 6: Final answer
    x = 215,230.54

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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.