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Finding the Fourth Proportional to 378,649.17, 522,527.45 and 208,883.25

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Solution

The fourth proportional to 378,649.17, 522,527.45 and 208,883.25 is: 288,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,649.17 : 522,527.45 = 208,883.25 : x
  2. Step 2: Convert to fraction form
    378,649.17/522,527.45 = 208,883.25/x
  3. Step 3: Cross multiply
    378,649.17x = 522,527.45 × 208,883.25
  4. Step 4: Simplify right side
    378,649.17x = 109,147,230,925.80
  5. Step 5: Solve for x
    x = 109,147,230,925.80/378,649.17
  6. Step 6: Final answer
    x = 288,254.25

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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.