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Finding the Fourth Proportional to 557,300.20, 835,686.78 and 215,903.56

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Solution

The fourth proportional to 557,300.20, 835,686.78 and 215,903.56 is: 323,753.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,300.20 : 835,686.78 = 215,903.56 : x
  2. Step 2: Convert to fraction form
    557,300.20/835,686.78 = 215,903.56/x
  3. Step 3: Cross multiply
    557,300.20x = 835,686.78 × 215,903.56
  4. Step 4: Simplify right side
    557,300.20x = 180,427,750,846.94
  5. Step 5: Solve for x
    x = 180,427,750,846.94/557,300.20
  6. Step 6: Final answer
    x = 323,753.25

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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.