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Finding the Fourth Proportional to 291,930, 437,895 and 70,314

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Solution

The fourth proportional to 291,930, 437,895 and 70,314 is: 105,471

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,930 : 437,895 = 70,314 : x
  2. Step 2: Convert to fraction form
    291,930/437,895 = 70,314/x
  3. Step 3: Cross multiply
    291,930x = 437,895 × 70,314
  4. Step 4: Simplify right side
    291,930x = 30,790,149,030
  5. Step 5: Solve for x
    x = 30,790,149,030/291,930
  6. Step 6: Final answer
    x = 105,471

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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.