Home / 309,977.08-464,962.38-99,615.22

Finding the Fourth Proportional to 309,977.08, 464,962.38 and 99,615.22

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Solution

The fourth proportional to 309,977.08, 464,962.38 and 99,615.22 is: 149,421.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,977.08 : 464,962.38 = 99,615.22 : x
  2. Step 2: Convert to fraction form
    309,977.08/464,962.38 = 99,615.22/x
  3. Step 3: Cross multiply
    309,977.08x = 464,962.38 × 99,615.22
  4. Step 4: Simplify right side
    309,977.08x = 46,317,329,775.42
  5. Step 5: Solve for x
    x = 46,317,329,775.42/309,977.08
  6. Step 6: Final answer
    x = 149,421.79

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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.