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Finding the Fourth Proportional to 304,818.90, 457,228.35 and 298,986.90

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Solution

The fourth proportional to 304,818.90, 457,228.35 and 298,986.90 is: 448,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,818.90 : 457,228.35 = 298,986.90 : x
  2. Step 2: Convert to fraction form
    304,818.90/457,228.35 = 298,986.90/x
  3. Step 3: Cross multiply
    304,818.90x = 457,228.35 × 298,986.90
  4. Step 4: Simplify right side
    304,818.90x = 136,705,286,958.62
  5. Step 5: Solve for x
    x = 136,705,286,958.62/304,818.90
  6. Step 6: Final answer
    x = 448,480.35

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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.