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Finding the Fourth Proportional to 620,162.20, 930,243.30 and 265,212.10

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Solution

The fourth proportional to 620,162.20, 930,243.30 and 265,212.10 is: 397,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,162.20 : 930,243.30 = 265,212.10 : x
  2. Step 2: Convert to fraction form
    620,162.20/930,243.30 = 265,212.10/x
  3. Step 3: Cross multiply
    620,162.20x = 930,243.30 × 265,212.10
  4. Step 4: Simplify right side
    620,162.20x = 246,711,779,103.93
  5. Step 5: Solve for x
    x = 246,711,779,103.93/620,162.20
  6. Step 6: Final answer
    x = 397,818.15

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Similar ratio
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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.