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Finding the Fourth Proportional to 289,549.50, 399,594.72 and 162,266.10

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Solution

The fourth proportional to 289,549.50, 399,594.72 and 162,266.10 is: 223,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,549.50 : 399,594.72 = 162,266.10 : x
  2. Step 2: Convert to fraction form
    289,549.50/399,594.72 = 162,266.10/x
  3. Step 3: Cross multiply
    289,549.50x = 399,594.72 × 162,266.10
  4. Step 4: Simplify right side
    289,549.50x = 64,840,676,794.99
  5. Step 5: Solve for x
    x = 64,840,676,794.99/289,549.50
  6. Step 6: Final answer
    x = 223,936.41

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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.