Home / 348,518.30-521,611.05-306,527.90

Finding the Fourth Proportional to 348,518.30, 521,611.05 and 306,527.90

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Solution

The fourth proportional to 348,518.30, 521,611.05 and 306,527.90 is: 458,765.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,518.30 : 521,611.05 = 306,527.90 : x
  2. Step 2: Convert to fraction form
    348,518.30/521,611.05 = 306,527.90/x
  3. Step 3: Cross multiply
    348,518.30x = 521,611.05 × 306,527.90
  4. Step 4: Simplify right side
    348,518.30x = 159,888,339,773.30
  5. Step 5: Solve for x
    x = 159,888,339,773.30/348,518.30
  6. Step 6: Final answer
    x = 458,765.98

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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.