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Finding the Fourth Proportional to 485,150.68, 669,508.64 and 270,298.28

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Solution

The fourth proportional to 485,150.68, 669,508.64 and 270,298.28 is: 373,012.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,150.68 : 669,508.64 = 270,298.28 : x
  2. Step 2: Convert to fraction form
    485,150.68/669,508.64 = 270,298.28/x
  3. Step 3: Cross multiply
    485,150.68x = 669,508.64 × 270,298.28
  4. Step 4: Simplify right side
    485,150.68x = 180,967,035,173.04
  5. Step 5: Solve for x
    x = 180,967,035,173.04/485,150.68
  6. Step 6: Final answer
    x = 373,012.02

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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.