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Finding the Fourth Proportional to 358,419.60, 537,702.91 and 299,665.85

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Solution

The fourth proportional to 358,419.60, 537,702.91 and 299,665.85 is: 449,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,419.60 : 537,702.91 = 299,665.85 : x
  2. Step 2: Convert to fraction form
    358,419.60/537,702.91 = 299,665.85/x
  3. Step 3: Cross multiply
    358,419.60x = 537,702.91 × 299,665.85
  4. Step 4: Simplify right side
    358,419.60x = 161,131,196,134.94
  5. Step 5: Solve for x
    x = 161,131,196,134.94/358,419.60
  6. Step 6: Final answer
    x = 449,560.23

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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.