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Finding the Fourth Proportional to 445,010.68, 667,557 and 145,492.84

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Solution

The fourth proportional to 445,010.68, 667,557 and 145,492.84 is: 218,252.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,010.68 : 667,557 = 145,492.84 : x
  2. Step 2: Convert to fraction form
    445,010.68/667,557 = 145,492.84/x
  3. Step 3: Cross multiply
    445,010.68x = 667,557 × 145,492.84
  4. Step 4: Simplify right side
    445,010.68x = 97,124,763,791.88
  5. Step 5: Solve for x
    x = 97,124,763,791.88/445,010.68
  6. Step 6: Final answer
    x = 218,252.66

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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.