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Finding the Fourth Proportional to 461,051.82, 636,254.29 and 257,115.63

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Solution

The fourth proportional to 461,051.82, 636,254.29 and 257,115.63 is: 354,821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,051.82 : 636,254.29 = 257,115.63 : x
  2. Step 2: Convert to fraction form
    461,051.82/636,254.29 = 257,115.63/x
  3. Step 3: Cross multiply
    461,051.82x = 636,254.29 × 257,115.63
  4. Step 4: Simplify right side
    461,051.82x = 163,590,922,613.55
  5. Step 5: Solve for x
    x = 163,590,922,613.55/461,051.82
  6. Step 6: Final answer
    x = 354,821.12

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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.