Home / 217,038.37-299,515.17-120,245.08

Finding the Fourth Proportional to 217,038.37, 299,515.17 and 120,245.08

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Solution

The fourth proportional to 217,038.37, 299,515.17 and 120,245.08 is: 165,939.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,038.37 : 299,515.17 = 120,245.08 : x
  2. Step 2: Convert to fraction form
    217,038.37/299,515.17 = 120,245.08/x
  3. Step 3: Cross multiply
    217,038.37x = 299,515.17 × 120,245.08
  4. Step 4: Simplify right side
    217,038.37x = 36,015,225,577.86
  5. Step 5: Solve for x
    x = 36,015,225,577.86/217,038.37
  6. Step 6: Final answer
    x = 165,939.44

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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.