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Finding the Fourth Proportional to 376,897.40, 520,120.54 and 204,816.80

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Solution

The fourth proportional to 376,897.40, 520,120.54 and 204,816.80 is: 282,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,897.40 : 520,120.54 = 204,816.80 : x
  2. Step 2: Convert to fraction form
    376,897.40/520,120.54 = 204,816.80/x
  3. Step 3: Cross multiply
    376,897.40x = 520,120.54 × 204,816.80
  4. Step 4: Simplify right side
    376,897.40x = 106,529,426,173.39
  5. Step 5: Solve for x
    x = 106,529,426,173.39/376,897.40
  6. Step 6: Final answer
    x = 282,648.34

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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.