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Finding the Fourth Proportional to 370,640.28, 556,575.28 and 231,284.64

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Solution

The fourth proportional to 370,640.28, 556,575.28 and 231,284.64 is: 347,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,640.28 : 556,575.28 = 231,284.64 : x
  2. Step 2: Convert to fraction form
    370,640.28/556,575.28 = 231,284.64/x
  3. Step 3: Cross multiply
    370,640.28x = 556,575.28 × 231,284.64
  4. Step 4: Simplify right side
    370,640.28x = 128,727,313,267.70
  5. Step 5: Solve for x
    x = 128,727,313,267.70/370,640.28
  6. Step 6: Final answer
    x = 347,310.64

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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.