Home / 289,410.03-399,353.41-160,316.20

Finding the Fourth Proportional to 289,410.03, 399,353.41 and 160,316.20

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Solution

The fourth proportional to 289,410.03, 399,353.41 and 160,316.20 is: 221,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,410.03 : 399,353.41 = 160,316.20 : x
  2. Step 2: Convert to fraction form
    289,410.03/399,353.41 = 160,316.20/x
  3. Step 3: Cross multiply
    289,410.03x = 399,353.41 × 160,316.20
  4. Step 4: Simplify right side
    289,410.03x = 64,022,820,346.66
  5. Step 5: Solve for x
    x = 64,022,820,346.66/289,410.03
  6. Step 6: Final answer
    x = 221,218.39

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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.