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Finding the Fourth Proportional to 291,756.78, 437,875.65 and 225,599.94

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Solution

The fourth proportional to 291,756.78, 437,875.65 and 225,599.94 is: 338,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,756.78 : 437,875.65 = 225,599.94 : x
  2. Step 2: Convert to fraction form
    291,756.78/437,875.65 = 225,599.94/x
  3. Step 3: Cross multiply
    291,756.78x = 437,875.65 × 225,599.94
  4. Step 4: Simplify right side
    291,756.78x = 98,784,720,367.46
  5. Step 5: Solve for x
    x = 98,784,720,367.46/291,756.78
  6. Step 6: Final answer
    x = 338,585.86

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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.