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Finding the Fourth Proportional to 557,611.20, 836,416.80 and 202,636.80

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Solution

The fourth proportional to 557,611.20, 836,416.80 and 202,636.80 is: 303,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,611.20 : 836,416.80 = 202,636.80 : x
  2. Step 2: Convert to fraction form
    557,611.20/836,416.80 = 202,636.80/x
  3. Step 3: Cross multiply
    557,611.20x = 836,416.80 × 202,636.80
  4. Step 4: Simplify right side
    557,611.20x = 169,488,823,818.24
  5. Step 5: Solve for x
    x = 169,488,823,818.24/557,611.20
  6. Step 6: Final answer
    x = 303,955.20

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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.