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Finding the Fourth Proportional to 216,068.40, 323,519.40 and 169,412.40

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Solution

The fourth proportional to 216,068.40, 323,519.40 and 169,412.40 is: 253,661.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,068.40 : 323,519.40 = 169,412.40 : x
  2. Step 2: Convert to fraction form
    216,068.40/323,519.40 = 169,412.40/x
  3. Step 3: Cross multiply
    216,068.40x = 323,519.40 × 169,412.40
  4. Step 4: Simplify right side
    216,068.40x = 54,808,198,000.56
  5. Step 5: Solve for x
    x = 54,808,198,000.56/216,068.40
  6. Step 6: Final answer
    x = 253,661.33

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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.