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Finding the Fourth Proportional to 268,857.63, 371,021.72 and 147,995.71

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Solution

The fourth proportional to 268,857.63, 371,021.72 and 147,995.71 is: 204,233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,857.63 : 371,021.72 = 147,995.71 : x
  2. Step 2: Convert to fraction form
    268,857.63/371,021.72 = 147,995.71/x
  3. Step 3: Cross multiply
    268,857.63x = 371,021.72 × 147,995.71
  4. Step 4: Simplify right side
    268,857.63x = 54,909,621,209.29
  5. Step 5: Solve for x
    x = 54,909,621,209.29/268,857.63
  6. Step 6: Final answer
    x = 204,233.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.