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Finding the Fourth Proportional to 298,995.28, 412,595.40 and 171,658.96

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Solution

The fourth proportional to 298,995.28, 412,595.40 and 171,658.96 is: 236,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,995.28 : 412,595.40 = 171,658.96 : x
  2. Step 2: Convert to fraction form
    298,995.28/412,595.40 = 171,658.96/x
  3. Step 3: Cross multiply
    298,995.28x = 412,595.40 × 171,658.96
  4. Step 4: Simplify right side
    298,995.28x = 70,825,697,264.78
  5. Step 5: Solve for x
    x = 70,825,697,264.78/298,995.28
  6. Step 6: Final answer
    x = 236,878.98

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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.