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Finding the Fourth Proportional to 299,730.08, 449,816.40 and 141,958.40

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Solution

The fourth proportional to 299,730.08, 449,816.40 and 141,958.40 is: 213,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,730.08 : 449,816.40 = 141,958.40 : x
  2. Step 2: Convert to fraction form
    299,730.08/449,816.40 = 141,958.40/x
  3. Step 3: Cross multiply
    299,730.08x = 449,816.40 × 141,958.40
  4. Step 4: Simplify right side
    299,730.08x = 63,855,216,437.76
  5. Step 5: Solve for x
    x = 63,855,216,437.76/299,730.08
  6. Step 6: Final answer
    x = 213,042.40

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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.