Home / 352,769.58-486,746.01-209,577.78

Finding the Fourth Proportional to 352,769.58, 486,746.01 and 209,577.78

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Solution

The fourth proportional to 352,769.58, 486,746.01 and 209,577.78 is: 289,172.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,769.58 : 486,746.01 = 209,577.78 : x
  2. Step 2: Convert to fraction form
    352,769.58/486,746.01 = 209,577.78/x
  3. Step 3: Cross multiply
    352,769.58x = 486,746.01 × 209,577.78
  4. Step 4: Simplify right side
    352,769.58x = 102,011,148,199.66
  5. Step 5: Solve for x
    x = 102,011,148,199.66/352,769.58
  6. Step 6: Final answer
    x = 289,172.18

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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.