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Finding the Fourth Proportional to 370,750.20, 556,125.30 and 213,286.20

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Solution

The fourth proportional to 370,750.20, 556,125.30 and 213,286.20 is: 319,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,750.20 : 556,125.30 = 213,286.20 : x
  2. Step 2: Convert to fraction form
    370,750.20/556,125.30 = 213,286.20/x
  3. Step 3: Cross multiply
    370,750.20x = 556,125.30 × 213,286.20
  4. Step 4: Simplify right side
    370,750.20x = 118,613,851,960.86
  5. Step 5: Solve for x
    x = 118,613,851,960.86/370,750.20
  6. Step 6: Final answer
    x = 319,929.30

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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.