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Finding the Fourth Proportional to 299,877.45, 449,160.08 and 260,511.45

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Solution

The fourth proportional to 299,877.45, 449,160.08 and 260,511.45 is: 390,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,877.45 : 449,160.08 = 260,511.45 : x
  2. Step 2: Convert to fraction form
    299,877.45/449,160.08 = 260,511.45/x
  3. Step 3: Cross multiply
    299,877.45x = 449,160.08 × 260,511.45
  4. Step 4: Simplify right side
    299,877.45x = 117,011,342,420.36
  5. Step 5: Solve for x
    x = 117,011,342,420.36/299,877.45
  6. Step 6: Final answer
    x = 390,197.20

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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.