Home / 397,946.70-549,148.41-216,654.12

Finding the Fourth Proportional to 397,946.70, 549,148.41 and 216,654.12

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Solution

The fourth proportional to 397,946.70, 549,148.41 and 216,654.12 is: 298,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,946.70 : 549,148.41 = 216,654.12 : x
  2. Step 2: Convert to fraction form
    397,946.70/549,148.41 = 216,654.12/x
  3. Step 3: Cross multiply
    397,946.70x = 549,148.41 × 216,654.12
  4. Step 4: Simplify right side
    397,946.70x = 118,975,265,517.95
  5. Step 5: Solve for x
    x = 118,975,265,517.95/397,946.70
  6. Step 6: Final answer
    x = 298,972.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.