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Finding the Fourth Proportional to 216,559.68, 323,271.12 and 187,166.40

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Solution

The fourth proportional to 216,559.68, 323,271.12 and 187,166.40 is: 279,394.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,559.68 : 323,271.12 = 187,166.40 : x
  2. Step 2: Convert to fraction form
    216,559.68/323,271.12 = 187,166.40/x
  3. Step 3: Cross multiply
    216,559.68x = 323,271.12 × 187,166.40
  4. Step 4: Simplify right side
    216,559.68x = 60,505,491,754.37
  5. Step 5: Solve for x
    x = 60,505,491,754.37/216,559.68
  6. Step 6: Final answer
    x = 279,394.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.