Home / 245,947.36-339,431.50-143,966.68

Finding the Fourth Proportional to 245,947.36, 339,431.50 and 143,966.68

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Solution

The fourth proportional to 245,947.36, 339,431.50 and 143,966.68 is: 198,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,947.36 : 339,431.50 = 143,966.68 : x
  2. Step 2: Convert to fraction form
    245,947.36/339,431.50 = 143,966.68/x
  3. Step 3: Cross multiply
    245,947.36x = 339,431.50 × 143,966.68
  4. Step 4: Simplify right side
    245,947.36x = 48,866,826,142.42
  5. Step 5: Solve for x
    x = 48,866,826,142.42/245,947.36
  6. Step 6: Final answer
    x = 198,688.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.