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Finding the Fourth Proportional to 571,214.40, 856,821.60 and 150,532.80

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Solution

The fourth proportional to 571,214.40, 856,821.60 and 150,532.80 is: 225,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,214.40 : 856,821.60 = 150,532.80 : x
  2. Step 2: Convert to fraction form
    571,214.40/856,821.60 = 150,532.80/x
  3. Step 3: Cross multiply
    571,214.40x = 856,821.60 × 150,532.80
  4. Step 4: Simplify right side
    571,214.40x = 128,979,754,548.48
  5. Step 5: Solve for x
    x = 128,979,754,548.48/571,214.40
  6. Step 6: Final answer
    x = 225,799.20

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Similar ratio
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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.