Home / 380,260.26-570,951.10-212,109.12

Finding the Fourth Proportional to 380,260.26, 570,951.10 and 212,109.12

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Solution

The fourth proportional to 380,260.26, 570,951.10 and 212,109.12 is: 318,476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,260.26 : 570,951.10 = 212,109.12 : x
  2. Step 2: Convert to fraction form
    380,260.26/570,951.10 = 212,109.12/x
  3. Step 3: Cross multiply
    380,260.26x = 570,951.10 × 212,109.12
  4. Step 4: Simplify right side
    380,260.26x = 121,103,935,384.03
  5. Step 5: Solve for x
    x = 121,103,935,384.03/380,260.26
  6. Step 6: Final answer
    x = 318,476.44

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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.