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Finding the Fourth Proportional to 291,689.02, 437,533.67 and 70,073.02

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Solution

The fourth proportional to 291,689.02, 437,533.67 and 70,073.02 is: 105,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,689.02 : 437,533.67 = 70,073.02 : x
  2. Step 2: Convert to fraction form
    291,689.02/437,533.67 = 70,073.02/x
  3. Step 3: Cross multiply
    291,689.02x = 437,533.67 × 70,073.02
  4. Step 4: Simplify right side
    291,689.02x = 30,659,305,608.58
  5. Step 5: Solve for x
    x = 30,659,305,608.58/291,689.02
  6. Step 6: Final answer
    x = 105,109.56

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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.