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Finding the Fourth Proportional to 257,520.33, 386,210.23 and 107,736.35

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Solution

The fourth proportional to 257,520.33, 386,210.23 and 107,736.35 is: 161,575.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,520.33 : 386,210.23 = 107,736.35 : x
  2. Step 2: Convert to fraction form
    257,520.33/386,210.23 = 107,736.35/x
  3. Step 3: Cross multiply
    257,520.33x = 386,210.23 × 107,736.35
  4. Step 4: Simplify right side
    257,520.33x = 41,608,878,312.47
  5. Step 5: Solve for x
    x = 41,608,878,312.47/257,520.33
  6. Step 6: Final answer
    x = 161,575.12

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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.