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Finding the Fourth Proportional to 359,015.70, 538,523.55 and 109,665.30

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Solution

The fourth proportional to 359,015.70, 538,523.55 and 109,665.30 is: 164,497.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,015.70 : 538,523.55 = 109,665.30 : x
  2. Step 2: Convert to fraction form
    359,015.70/538,523.55 = 109,665.30/x
  3. Step 3: Cross multiply
    359,015.70x = 538,523.55 × 109,665.30
  4. Step 4: Simplify right side
    359,015.70x = 59,057,346,667.82
  5. Step 5: Solve for x
    x = 59,057,346,667.82/359,015.70
  6. Step 6: Final answer
    x = 164,497.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.