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Finding the Fourth Proportional to 291,836.25, 437,754.51 and 70,220.25

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Solution

The fourth proportional to 291,836.25, 437,754.51 and 70,220.25 is: 105,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,836.25 : 437,754.51 = 70,220.25 : x
  2. Step 2: Convert to fraction form
    291,836.25/437,754.51 = 70,220.25/x
  3. Step 3: Cross multiply
    291,836.25x = 437,754.51 × 70,220.25
  4. Step 4: Simplify right side
    291,836.25x = 30,739,231,130.83
  5. Step 5: Solve for x
    x = 30,739,231,130.83/291,836.25
  6. Step 6: Final answer
    x = 105,330.41

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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.