Home / 245,108.73-338,197.58-143,087.89

Finding the Fourth Proportional to 245,108.73, 338,197.58 and 143,087.89

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Solution

The fourth proportional to 245,108.73, 338,197.58 and 143,087.89 is: 197,430.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,108.73 : 338,197.58 = 143,087.89 : x
  2. Step 2: Convert to fraction form
    245,108.73/338,197.58 = 143,087.89/x
  3. Step 3: Cross multiply
    245,108.73x = 338,197.58 × 143,087.89
  4. Step 4: Simplify right side
    245,108.73x = 48,391,978,125.31
  5. Step 5: Solve for x
    x = 48,391,978,125.31/245,108.73
  6. Step 6: Final answer
    x = 197,430.66

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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.