Home / 326,949.05-490,429.74-90,298.01

Finding the Fourth Proportional to 326,949.05, 490,429.74 and 90,298.01

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Solution

The fourth proportional to 326,949.05, 490,429.74 and 90,298.01 is: 135,448.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,949.05 : 490,429.74 = 90,298.01 : x
  2. Step 2: Convert to fraction form
    326,949.05/490,429.74 = 90,298.01/x
  3. Step 3: Cross multiply
    326,949.05x = 490,429.74 × 90,298.01
  4. Step 4: Simplify right side
    326,949.05x = 44,284,829,566.82
  5. Step 5: Solve for x
    x = 44,284,829,566.82/326,949.05
  6. Step 6: Final answer
    x = 135,448.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.