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Finding the Fourth Proportional to 316,133.80, 435,752.52 and 247,103.03

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Solution

The fourth proportional to 316,133.80, 435,752.52 and 247,103.03 is: 340,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,133.80 : 435,752.52 = 247,103.03 : x
  2. Step 2: Convert to fraction form
    316,133.80/435,752.52 = 247,103.03/x
  3. Step 3: Cross multiply
    316,133.80x = 435,752.52 × 247,103.03
  4. Step 4: Simplify right side
    316,133.80x = 107,675,768,022.14
  5. Step 5: Solve for x
    x = 107,675,768,022.14/316,133.80
  6. Step 6: Final answer
    x = 340,601.88

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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.