Home / 341,815.12-471,712.20-190,912.40

Finding the Fourth Proportional to 341,815.12, 471,712.20 and 190,912.40

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Solution

The fourth proportional to 341,815.12, 471,712.20 and 190,912.40 is: 263,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,815.12 : 471,712.20 = 190,912.40 : x
  2. Step 2: Convert to fraction form
    341,815.12/471,712.20 = 190,912.40/x
  3. Step 3: Cross multiply
    341,815.12x = 471,712.20 × 190,912.40
  4. Step 4: Simplify right side
    341,815.12x = 90,055,708,211.28
  5. Step 5: Solve for x
    x = 90,055,708,211.28/341,815.12
  6. Step 6: Final answer
    x = 263,463.21

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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.