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Finding the Fourth Proportional to 250,335.77, 375,539.44 and 77,242.21

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Solution

The fourth proportional to 250,335.77, 375,539.44 and 77,242.21 is: 115,874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,335.77 : 375,539.44 = 77,242.21 : x
  2. Step 2: Convert to fraction form
    250,335.77/375,539.44 = 77,242.21/x
  3. Step 3: Cross multiply
    250,335.77x = 375,539.44 × 77,242.21
  4. Step 4: Simplify right side
    250,335.77x = 29,007,495,300.64
  5. Step 5: Solve for x
    x = 29,007,495,300.64/250,335.77
  6. Step 6: Final answer
    x = 115,874.35

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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.