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Finding the Fourth Proportional to 296,885.80, 445,674.30 and 178,690.60

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Solution

The fourth proportional to 296,885.80, 445,674.30 and 178,690.60 is: 268,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,885.80 : 445,674.30 = 178,690.60 : x
  2. Step 2: Convert to fraction form
    296,885.80/445,674.30 = 178,690.60/x
  3. Step 3: Cross multiply
    296,885.80x = 445,674.30 × 178,690.60
  4. Step 4: Simplify right side
    296,885.80x = 79,637,808,071.58
  5. Step 5: Solve for x
    x = 79,637,808,071.58/296,885.80
  6. Step 6: Final answer
    x = 268,243.91

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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.