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Finding the Fourth Proportional to 286,527.75, 429,791.63 and 89,535.75

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Solution

The fourth proportional to 286,527.75, 429,791.63 and 89,535.75 is: 134,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,527.75 : 429,791.63 = 89,535.75 : x
  2. Step 2: Convert to fraction form
    286,527.75/429,791.63 = 89,535.75/x
  3. Step 3: Cross multiply
    286,527.75x = 429,791.63 × 89,535.75
  4. Step 4: Simplify right side
    286,527.75x = 38,481,715,488.09
  5. Step 5: Solve for x
    x = 38,481,715,488.09/286,527.75
  6. Step 6: Final answer
    x = 134,303.63

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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.