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Finding the Fourth Proportional to 370,858.20, 556,287.30 and 202,313.40

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Solution

The fourth proportional to 370,858.20, 556,287.30 and 202,313.40 is: 303,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,858.20 : 556,287.30 = 202,313.40 : x
  2. Step 2: Convert to fraction form
    370,858.20/556,287.30 = 202,313.40/x
  3. Step 3: Cross multiply
    370,858.20x = 556,287.30 × 202,313.40
  4. Step 4: Simplify right side
    370,858.20x = 112,544,375,039.82
  5. Step 5: Solve for x
    x = 112,544,375,039.82/370,858.20
  6. Step 6: Final answer
    x = 303,470.10

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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.