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Finding the Fourth Proportional to 461,520.55, 636,930.32 and 257,611.15

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Solution

The fourth proportional to 461,520.55, 636,930.32 and 257,611.15 is: 355,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,520.55 : 636,930.32 = 257,611.15 : x
  2. Step 2: Convert to fraction form
    461,520.55/636,930.32 = 257,611.15/x
  3. Step 3: Cross multiply
    461,520.55x = 636,930.32 × 257,611.15
  4. Step 4: Simplify right side
    461,520.55x = 164,080,352,205.07
  5. Step 5: Solve for x
    x = 164,080,352,205.07/461,520.55
  6. Step 6: Final answer
    x = 355,521.23

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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.