Home / 380,258.38-570,948.28-212,107.24

Finding the Fourth Proportional to 380,258.38, 570,948.28 and 212,107.24

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Solution

The fourth proportional to 380,258.38, 570,948.28 and 212,107.24 is: 318,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,258.38 : 570,948.28 = 212,107.24 : x
  2. Step 2: Convert to fraction form
    380,258.38/570,948.28 = 212,107.24/x
  3. Step 3: Cross multiply
    380,258.38x = 570,948.28 × 212,107.24
  4. Step 4: Simplify right side
    380,258.38x = 121,102,263,853.55
  5. Step 5: Solve for x
    x = 121,102,263,853.55/380,258.38
  6. Step 6: Final answer
    x = 318,473.62

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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.