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Finding the Fourth Proportional to 309,404.76, 464,107.58 and 84,767.16

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Solution

The fourth proportional to 309,404.76, 464,107.58 and 84,767.16 is: 127,150.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,404.76 : 464,107.58 = 84,767.16 : x
  2. Step 2: Convert to fraction form
    309,404.76/464,107.58 = 84,767.16/x
  3. Step 3: Cross multiply
    309,404.76x = 464,107.58 × 84,767.16
  4. Step 4: Simplify right side
    309,404.76x = 39,341,081,491.07
  5. Step 5: Solve for x
    x = 39,341,081,491.07/309,404.76
  6. Step 6: Final answer
    x = 127,150.86

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1.5x scale

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.