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Finding the Fourth Proportional to 145,644.84, 218,476.68 and 45,808.92

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Solution

The fourth proportional to 145,644.84, 218,476.68 and 45,808.92 is: 68,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,644.84 : 218,476.68 = 45,808.92 : x
  2. Step 2: Convert to fraction form
    145,644.84/218,476.68 = 45,808.92/x
  3. Step 3: Cross multiply
    145,644.84x = 218,476.68 × 45,808.92
  4. Step 4: Simplify right side
    145,644.84x = 10,008,180,755.99
  5. Step 5: Solve for x
    x = 10,008,180,755.99/145,644.84
  6. Step 6: Final answer
    x = 68,716.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.