Home / 309,422.57-464,844.29-218,447.19

Finding the Fourth Proportional to 309,422.57, 464,844.29 and 218,447.19

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Solution

The fourth proportional to 309,422.57, 464,844.29 and 218,447.19 is: 328,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,422.57 : 464,844.29 = 218,447.19 : x
  2. Step 2: Convert to fraction form
    309,422.57/464,844.29 = 218,447.19/x
  3. Step 3: Cross multiply
    309,422.57x = 464,844.29 × 218,447.19
  4. Step 4: Simplify right side
    309,422.57x = 101,543,927,845.81
  5. Step 5: Solve for x
    x = 101,543,927,845.81/309,422.57
  6. Step 6: Final answer
    x = 328,172.34

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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.