Home / 290,533.46-435,788.30-80,166.02

Finding the Fourth Proportional to 290,533.46, 435,788.30 and 80,166.02

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Solution

The fourth proportional to 290,533.46, 435,788.30 and 80,166.02 is: 120,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,533.46 : 435,788.30 = 80,166.02 : x
  2. Step 2: Convert to fraction form
    290,533.46/435,788.30 = 80,166.02/x
  3. Step 3: Cross multiply
    290,533.46x = 435,788.30 × 80,166.02
  4. Step 4: Simplify right side
    290,533.46x = 34,935,411,595.04
  5. Step 5: Solve for x
    x = 34,935,411,595.04/290,533.46
  6. Step 6: Final answer
    x = 120,245.74

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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.