Home / 248,612.40-343,084.64-135,435.12

Finding the Fourth Proportional to 248,612.40, 343,084.64 and 135,435.12

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Solution

The fourth proportional to 248,612.40, 343,084.64 and 135,435.12 is: 186,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,612.40 : 343,084.64 = 135,435.12 : x
  2. Step 2: Convert to fraction form
    248,612.40/343,084.64 = 135,435.12/x
  3. Step 3: Cross multiply
    248,612.40x = 343,084.64 × 135,435.12
  4. Step 4: Simplify right side
    248,612.40x = 46,465,709,388.56
  5. Step 5: Solve for x
    x = 46,465,709,388.56/248,612.40
  6. Step 6: Final answer
    x = 186,900.21

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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.