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Finding the Fourth Proportional to 199,124.10, 298,686.15 and 74,448.90

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Solution

The fourth proportional to 199,124.10, 298,686.15 and 74,448.90 is: 111,673.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,124.10 : 298,686.15 = 74,448.90 : x
  2. Step 2: Convert to fraction form
    199,124.10/298,686.15 = 74,448.90/x
  3. Step 3: Cross multiply
    199,124.10x = 298,686.15 × 74,448.90
  4. Step 4: Simplify right side
    199,124.10x = 22,236,855,312.74
  5. Step 5: Solve for x
    x = 22,236,855,312.74/199,124.10
  6. Step 6: Final answer
    x = 111,673.35

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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.