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Finding the Fourth Proportional to 304,858.80, 457,288.20 and 83,242.80

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Solution

The fourth proportional to 304,858.80, 457,288.20 and 83,242.80 is: 124,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,858.80 : 457,288.20 = 83,242.80 : x
  2. Step 2: Convert to fraction form
    304,858.80/457,288.20 = 83,242.80/x
  3. Step 3: Cross multiply
    304,858.80x = 457,288.20 × 83,242.80
  4. Step 4: Simplify right side
    304,858.80x = 38,065,950,174.96
  5. Step 5: Solve for x
    x = 38,065,950,174.96/304,858.80
  6. Step 6: Final answer
    x = 124,864.20

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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.