Home / 288,977.80-433,499.10-89,296.60

Finding the Fourth Proportional to 288,977.80, 433,499.10 and 89,296.60

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Solution

The fourth proportional to 288,977.80, 433,499.10 and 89,296.60 is: 133,954.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,977.80 : 433,499.10 = 89,296.60 : x
  2. Step 2: Convert to fraction form
    288,977.80/433,499.10 = 89,296.60/x
  3. Step 3: Cross multiply
    288,977.80x = 433,499.10 × 89,296.60
  4. Step 4: Simplify right side
    288,977.80x = 38,709,995,733.06
  5. Step 5: Solve for x
    x = 38,709,995,733.06/288,977.80
  6. Step 6: Final answer
    x = 133,954.91

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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.