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Finding the Fourth Proportional to 283,164.68, 390,759.40 and 160,679.36

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Solution

The fourth proportional to 283,164.68, 390,759.40 and 160,679.36 is: 221,733.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,164.68 : 390,759.40 = 160,679.36 : x
  2. Step 2: Convert to fraction form
    283,164.68/390,759.40 = 160,679.36/x
  3. Step 3: Cross multiply
    283,164.68x = 390,759.40 × 160,679.36
  4. Step 4: Simplify right side
    283,164.68x = 62,786,970,305.98
  5. Step 5: Solve for x
    x = 62,786,970,305.98/283,164.68
  6. Step 6: Final answer
    x = 221,733.06

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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.