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Finding the Fourth Proportional to 330,370.20, 456,130.30 and 253,752.30

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Solution

The fourth proportional to 330,370.20, 456,130.30 and 253,752.30 is: 350,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,370.20 : 456,130.30 = 253,752.30 : x
  2. Step 2: Convert to fraction form
    330,370.20/456,130.30 = 253,752.30/x
  3. Step 3: Cross multiply
    330,370.20x = 456,130.30 × 253,752.30
  4. Step 4: Simplify right side
    330,370.20x = 115,744,112,724.69
  5. Step 5: Solve for x
    x = 115,744,112,724.69/330,370.20
  6. Step 6: Final answer
    x = 350,346.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.