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Finding the Fourth Proportional to 485,249.04, 669,636.90 and 270,398.16

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Solution

The fourth proportional to 485,249.04, 669,636.90 and 270,398.16 is: 373,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,249.04 : 669,636.90 = 270,398.16 : x
  2. Step 2: Convert to fraction form
    485,249.04/669,636.90 = 270,398.16/x
  3. Step 3: Cross multiply
    485,249.04x = 669,636.90 × 270,398.16
  4. Step 4: Simplify right side
    485,249.04x = 181,068,585,628.10
  5. Step 5: Solve for x
    x = 181,068,585,628.10/485,249.04
  6. Step 6: Final answer
    x = 373,145.69

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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.