Home / 245,230.45-338,407.12-143,265.35

Finding the Fourth Proportional to 245,230.45, 338,407.12 and 143,265.35

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Solution

The fourth proportional to 245,230.45, 338,407.12 and 143,265.35 is: 197,699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,230.45 : 338,407.12 = 143,265.35 : x
  2. Step 2: Convert to fraction form
    245,230.45/338,407.12 = 143,265.35/x
  3. Step 3: Cross multiply
    245,230.45x = 338,407.12 × 143,265.35
  4. Step 4: Simplify right side
    245,230.45x = 48,482,014,489.29
  5. Step 5: Solve for x
    x = 48,482,014,489.29/245,230.45
  6. Step 6: Final answer
    x = 197,699.81

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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.