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Finding the Fourth Proportional to 236,899.63, 355,411 and 70,687.63

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Solution

The fourth proportional to 236,899.63, 355,411 and 70,687.63 is: 106,049.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,899.63 : 355,411 = 70,687.63 : x
  2. Step 2: Convert to fraction form
    236,899.63/355,411 = 70,687.63/x
  3. Step 3: Cross multiply
    236,899.63x = 355,411 × 70,687.63
  4. Step 4: Simplify right side
    236,899.63x = 25,123,159,488.88
  5. Step 5: Solve for x
    x = 25,123,159,488.88/236,899.63
  6. Step 6: Final answer
    x = 106,049.81

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1.5x scale

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.