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Finding the Fourth Proportional to 283,191.36, 390,759.30 and 162,309.36

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Solution

The fourth proportional to 283,191.36, 390,759.30 and 162,309.36 is: 223,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,191.36 : 390,759.30 = 162,309.36 : x
  2. Step 2: Convert to fraction form
    283,191.36/390,759.30 = 162,309.36/x
  3. Step 3: Cross multiply
    283,191.36x = 390,759.30 × 162,309.36
  4. Step 4: Simplify right side
    283,191.36x = 63,423,891,897.05
  5. Step 5: Solve for x
    x = 63,423,891,897.05/283,191.36
  6. Step 6: Final answer
    x = 223,961.25

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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.