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Finding the Fourth Proportional to 350,559.60, 525,839.40 and 280,575.60

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Solution

The fourth proportional to 350,559.60, 525,839.40 and 280,575.60 is: 420,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,559.60 : 525,839.40 = 280,575.60 : x
  2. Step 2: Convert to fraction form
    350,559.60/525,839.40 = 280,575.60/x
  3. Step 3: Cross multiply
    350,559.60x = 525,839.40 × 280,575.60
  4. Step 4: Simplify right side
    350,559.60x = 147,537,705,158.64
  5. Step 5: Solve for x
    x = 147,537,705,158.64/350,559.60
  6. Step 6: Final answer
    x = 420,863.40

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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.