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Finding the Fourth Proportional to 360,629.30, 539,907.15 and 220,661.30

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Solution

The fourth proportional to 360,629.30, 539,907.15 and 220,661.30 is: 330,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,629.30 : 539,907.15 = 220,661.30 : x
  2. Step 2: Convert to fraction form
    360,629.30/539,907.15 = 220,661.30/x
  3. Step 3: Cross multiply
    360,629.30x = 539,907.15 × 220,661.30
  4. Step 4: Simplify right side
    360,629.30x = 119,136,613,598.30
  5. Step 5: Solve for x
    x = 119,136,613,598.30/360,629.30
  6. Step 6: Final answer
    x = 330,357.55

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1.5x scale

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.