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Finding the Fourth Proportional to 311,935.70, 467,903.55 and 170,218.10

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Solution

The fourth proportional to 311,935.70, 467,903.55 and 170,218.10 is: 255,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,935.70 : 467,903.55 = 170,218.10 : x
  2. Step 2: Convert to fraction form
    311,935.70/467,903.55 = 170,218.10/x
  3. Step 3: Cross multiply
    311,935.70x = 467,903.55 × 170,218.10
  4. Step 4: Simplify right side
    311,935.70x = 79,645,653,264.26
  5. Step 5: Solve for x
    x = 79,645,653,264.26/311,935.70
  6. Step 6: Final answer
    x = 255,327.15

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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.