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Finding the Fourth Proportional to 350,228.80, 525,343.20 and 208,511.20

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Solution

The fourth proportional to 350,228.80, 525,343.20 and 208,511.20 is: 312,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,228.80 : 525,343.20 = 208,511.20 : x
  2. Step 2: Convert to fraction form
    350,228.80/525,343.20 = 208,511.20/x
  3. Step 3: Cross multiply
    350,228.80x = 525,343.20 × 208,511.20
  4. Step 4: Simplify right side
    350,228.80x = 109,539,941,043.84
  5. Step 5: Solve for x
    x = 109,539,941,043.84/350,228.80
  6. Step 6: Final answer
    x = 312,766.80

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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.