Home / 351,029.20-526,543.80-209,311.60

Finding the Fourth Proportional to 351,029.20, 526,543.80 and 209,311.60

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Solution

The fourth proportional to 351,029.20, 526,543.80 and 209,311.60 is: 313,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,029.20 : 526,543.80 = 209,311.60 : x
  2. Step 2: Convert to fraction form
    351,029.20/526,543.80 = 209,311.60/x
  3. Step 3: Cross multiply
    351,029.20x = 526,543.80 × 209,311.60
  4. Step 4: Simplify right side
    351,029.20x = 110,211,725,248.08
  5. Step 5: Solve for x
    x = 110,211,725,248.08/351,029.20
  6. Step 6: Final answer
    x = 313,967.40

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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.