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Finding the Fourth Proportional to 550,401.28, 825,584.64 and 156,417.28

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Solution

The fourth proportional to 550,401.28, 825,584.64 and 156,417.28 is: 234,621.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,401.28 : 825,584.64 = 156,417.28 : x
  2. Step 2: Convert to fraction form
    550,401.28/825,584.64 = 156,417.28/x
  3. Step 3: Cross multiply
    550,401.28x = 825,584.64 × 156,417.28
  4. Step 4: Simplify right side
    550,401.28x = 129,135,703,798.58
  5. Step 5: Solve for x
    x = 129,135,703,798.58/550,401.28
  6. Step 6: Final answer
    x = 234,621.01

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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.