Home / 353,207.20-529,628.40-103,856.80

Finding the Fourth Proportional to 353,207.20, 529,628.40 and 103,856.80

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Solution

The fourth proportional to 353,207.20, 529,628.40 and 103,856.80 is: 155,731.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,207.20 : 529,628.40 = 103,856.80 : x
  2. Step 2: Convert to fraction form
    353,207.20/529,628.40 = 103,856.80/x
  3. Step 3: Cross multiply
    353,207.20x = 529,628.40 × 103,856.80
  4. Step 4: Simplify right side
    353,207.20x = 55,005,510,813.12
  5. Step 5: Solve for x
    x = 55,005,510,813.12/353,207.20
  6. Step 6: Final answer
    x = 155,731.57

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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.