Home / 309,214.38-427,574.79-245,441.46

Finding the Fourth Proportional to 309,214.38, 427,574.79 and 245,441.46

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Solution

The fourth proportional to 309,214.38, 427,574.79 and 245,441.46 is: 339,391.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,214.38 : 427,574.79 = 245,441.46 : x
  2. Step 2: Convert to fraction form
    309,214.38/427,574.79 = 245,441.46/x
  3. Step 3: Cross multiply
    309,214.38x = 427,574.79 × 245,441.46
  4. Step 4: Simplify right side
    309,214.38x = 104,944,580,716.79
  5. Step 5: Solve for x
    x = 104,944,580,716.79/309,214.38
  6. Step 6: Final answer
    x = 339,391.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.