Home / 352,769.58-486,899.01-216,920.40

Finding the Fourth Proportional to 352,769.58, 486,899.01 and 216,920.40

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Solution

The fourth proportional to 352,769.58, 486,899.01 and 216,920.40 is: 299,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,769.58 : 486,899.01 = 216,920.40 : x
  2. Step 2: Convert to fraction form
    352,769.58/486,899.01 = 216,920.40/x
  3. Step 3: Cross multiply
    352,769.58x = 486,899.01 × 216,920.40
  4. Step 4: Simplify right side
    352,769.58x = 105,618,328,008.80
  5. Step 5: Solve for x
    x = 105,618,328,008.80/352,769.58
  6. Step 6: Final answer
    x = 299,397.49

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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.