Home / 290,962.12-436,441.56-74,820.52

Finding the Fourth Proportional to 290,962.12, 436,441.56 and 74,820.52

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Solution

The fourth proportional to 290,962.12, 436,441.56 and 74,820.52 is: 112,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,962.12 : 436,441.56 = 74,820.52 : x
  2. Step 2: Convert to fraction form
    290,962.12/436,441.56 = 74,820.52/x
  3. Step 3: Cross multiply
    290,962.12x = 436,441.56 × 74,820.52
  4. Step 4: Simplify right side
    290,962.12x = 32,654,784,468.81
  5. Step 5: Solve for x
    x = 32,654,784,468.81/290,962.12
  6. Step 6: Final answer
    x = 112,230.36

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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.