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Finding the Fourth Proportional to 389,376.86, 537,131.86 and 268,577.91

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Solution

The fourth proportional to 389,376.86, 537,131.86 and 268,577.91 is: 370,493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,376.86 : 537,131.86 = 268,577.91 : x
  2. Step 2: Convert to fraction form
    389,376.86/537,131.86 = 268,577.91/x
  3. Step 3: Cross multiply
    389,376.86x = 537,131.86 × 268,577.91
  4. Step 4: Simplify right side
    389,376.86x = 144,261,751,681.77
  5. Step 5: Solve for x
    x = 144,261,751,681.77/389,376.86
  6. Step 6: Final answer
    x = 370,493.91

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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.