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Finding the Fourth Proportional to 207,927, 286,939.36 and 112,433.67

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Solution

The fourth proportional to 207,927, 286,939.36 and 112,433.67 is: 155,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,927 : 286,939.36 = 112,433.67 : x
  2. Step 2: Convert to fraction form
    207,927/286,939.36 = 112,433.67/x
  3. Step 3: Cross multiply
    207,927x = 286,939.36 × 112,433.67
  4. Step 4: Simplify right side
    207,927x = 32,261,645,452.79
  5. Step 5: Solve for x
    x = 32,261,645,452.79/207,927
  6. Step 6: Final answer
    x = 155,158.52

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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.