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Finding the Fourth Proportional to 268,283.30, 402,174.77 and 90,666.09

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Solution

The fourth proportional to 268,283.30, 402,174.77 and 90,666.09 is: 135,914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,283.30 : 402,174.77 = 90,666.09 : x
  2. Step 2: Convert to fraction form
    268,283.30/402,174.77 = 90,666.09/x
  3. Step 3: Cross multiply
    268,283.30x = 402,174.77 × 90,666.09
  4. Step 4: Simplify right side
    268,283.30x = 36,463,613,439.22
  5. Step 5: Solve for x
    x = 36,463,613,439.22/268,283.30
  6. Step 6: Final answer
    x = 135,914.59

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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.