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Finding the Fourth Proportional to 288,611.16, 432,980.62 and 99,067.27

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Solution

The fourth proportional to 288,611.16, 432,980.62 and 99,067.27 is: 148,622.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,611.16 : 432,980.62 = 99,067.27 : x
  2. Step 2: Convert to fraction form
    288,611.16/432,980.62 = 99,067.27/x
  3. Step 3: Cross multiply
    288,611.16x = 432,980.62 × 99,067.27
  4. Step 4: Simplify right side
    288,611.16x = 42,894,207,986.31
  5. Step 5: Solve for x
    x = 42,894,207,986.31/288,611.16
  6. Step 6: Final answer
    x = 148,622.83

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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.