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Finding the Fourth Proportional to 291,244.62, 436,866.50 and 91,582.50

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Solution

The fourth proportional to 291,244.62, 436,866.50 and 91,582.50 is: 137,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,244.62 : 436,866.50 = 91,582.50 : x
  2. Step 2: Convert to fraction form
    291,244.62/436,866.50 = 91,582.50/x
  3. Step 3: Cross multiply
    291,244.62x = 436,866.50 × 91,582.50
  4. Step 4: Simplify right side
    291,244.62x = 40,009,326,236.25
  5. Step 5: Solve for x
    x = 40,009,326,236.25/291,244.62
  6. Step 6: Final answer
    x = 137,373.61

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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.