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Finding the Fourth Proportional to 245,066.76, 338,265.54 and 143,119.80

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Solution

The fourth proportional to 245,066.76, 338,265.54 and 143,119.80 is: 197,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,066.76 : 338,265.54 = 143,119.80 : x
  2. Step 2: Convert to fraction form
    245,066.76/338,265.54 = 143,119.80/x
  3. Step 3: Cross multiply
    245,066.76x = 338,265.54 × 143,119.80
  4. Step 4: Simplify right side
    245,066.76x = 48,412,496,431.69
  5. Step 5: Solve for x
    x = 48,412,496,431.69/245,066.76
  6. Step 6: Final answer
    x = 197,548.20

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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.