Home / 245,219.84-338,403.12-143,315.36

Finding the Fourth Proportional to 245,219.84, 338,403.12 and 143,315.36

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Solution

The fourth proportional to 245,219.84, 338,403.12 and 143,315.36 is: 197,775.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,219.84 : 338,403.12 = 143,315.36 : x
  2. Step 2: Convert to fraction form
    245,219.84/338,403.12 = 143,315.36/x
  3. Step 3: Cross multiply
    245,219.84x = 338,403.12 × 143,315.36
  4. Step 4: Simplify right side
    245,219.84x = 48,498,364,967.92
  5. Step 5: Solve for x
    x = 48,498,364,967.92/245,219.84
  6. Step 6: Final answer
    x = 197,775.05

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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.