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Finding the Fourth Proportional to 304,890.90, 457,336.35 and 299,058.90

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Solution

The fourth proportional to 304,890.90, 457,336.35 and 299,058.90 is: 448,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,890.90 : 457,336.35 = 299,058.90 : x
  2. Step 2: Convert to fraction form
    304,890.90/457,336.35 = 299,058.90/x
  3. Step 3: Cross multiply
    304,890.90x = 457,336.35 × 299,058.90
  4. Step 4: Simplify right side
    304,890.90x = 136,770,505,761.02
  5. Step 5: Solve for x
    x = 136,770,505,761.02/304,890.90
  6. Step 6: Final answer
    x = 448,588.35

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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.