Home / 348,012.60-521,985.15-111,291.72

Finding the Fourth Proportional to 348,012.60, 521,985.15 and 111,291.72

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Solution

The fourth proportional to 348,012.60, 521,985.15 and 111,291.72 is: 166,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,012.60 : 521,985.15 = 111,291.72 : x
  2. Step 2: Convert to fraction form
    348,012.60/521,985.15 = 111,291.72/x
  3. Step 3: Cross multiply
    348,012.60x = 521,985.15 × 111,291.72
  4. Step 4: Simplify right side
    348,012.60x = 58,092,625,157.96
  5. Step 5: Solve for x
    x = 58,092,625,157.96/348,012.60
  6. Step 6: Final answer
    x = 166,926.79

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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.