Home / 351,036.80-526,555.20-209,319.20

Finding the Fourth Proportional to 351,036.80, 526,555.20 and 209,319.20

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Solution

The fourth proportional to 351,036.80, 526,555.20 and 209,319.20 is: 313,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,036.80 : 526,555.20 = 209,319.20 : x
  2. Step 2: Convert to fraction form
    351,036.80/526,555.20 = 209,319.20/x
  3. Step 3: Cross multiply
    351,036.80x = 526,555.20 × 209,319.20
  4. Step 4: Simplify right side
    351,036.80x = 110,218,113,219.84
  5. Step 5: Solve for x
    x = 110,218,113,219.84/351,036.80
  6. Step 6: Final answer
    x = 313,978.80

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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.