Home / 283,938.71-391,835.75-163,103.40

Finding the Fourth Proportional to 283,938.71, 391,835.75 and 163,103.40

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Solution

The fourth proportional to 283,938.71, 391,835.75 and 163,103.40 is: 225,082.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,938.71 : 391,835.75 = 163,103.40 : x
  2. Step 2: Convert to fraction form
    283,938.71/391,835.75 = 163,103.40/x
  3. Step 3: Cross multiply
    283,938.71x = 391,835.75 × 163,103.40
  4. Step 4: Simplify right side
    283,938.71x = 63,909,742,251.03
  5. Step 5: Solve for x
    x = 63,909,742,251.03/283,938.71
  6. Step 6: Final answer
    x = 225,082.88

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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.