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Finding the Fourth Proportional to 547,404.70, 821,101.35 and 173,427.70

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Solution

The fourth proportional to 547,404.70, 821,101.35 and 173,427.70 is: 260,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,404.70 : 821,101.35 = 173,427.70 : x
  2. Step 2: Convert to fraction form
    547,404.70/821,101.35 = 173,427.70/x
  3. Step 3: Cross multiply
    547,404.70x = 821,101.35 × 173,427.70
  4. Step 4: Simplify right side
    547,404.70x = 142,401,718,597.40
  5. Step 5: Solve for x
    x = 142,401,718,597.40/547,404.70
  6. Step 6: Final answer
    x = 260,139.74

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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.