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Finding the Fourth Proportional to 425,354.88, 587,102.93 and 251,078.32

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Solution

The fourth proportional to 425,354.88, 587,102.93 and 251,078.32 is: 346,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,354.88 : 587,102.93 = 251,078.32 : x
  2. Step 2: Convert to fraction form
    425,354.88/587,102.93 = 251,078.32/x
  3. Step 3: Cross multiply
    425,354.88x = 587,102.93 × 251,078.32
  4. Step 4: Simplify right side
    425,354.88x = 147,408,817,331.48
  5. Step 5: Solve for x
    x = 147,408,817,331.48/425,354.88
  6. Step 6: Final answer
    x = 346,554.90

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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.