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Finding the Fourth Proportional to 525,101.80, 787,220.70 and 225,812.20

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Solution

The fourth proportional to 525,101.80, 787,220.70 and 225,812.20 is: 338,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,101.80 : 787,220.70 = 225,812.20 : x
  2. Step 2: Convert to fraction form
    525,101.80/787,220.70 = 225,812.20/x
  3. Step 3: Cross multiply
    525,101.80x = 787,220.70 × 225,812.20
  4. Step 4: Simplify right side
    525,101.80x = 177,764,038,152.54
  5. Step 5: Solve for x
    x = 177,764,038,152.54/525,101.80
  6. Step 6: Final answer
    x = 338,532.52

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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.