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Finding the Fourth Proportional to 560,015.70, 840,023.55 and 204,911.70

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Solution

The fourth proportional to 560,015.70, 840,023.55 and 204,911.70 is: 307,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,015.70 : 840,023.55 = 204,911.70 : x
  2. Step 2: Convert to fraction form
    560,015.70/840,023.55 = 204,911.70/x
  3. Step 3: Cross multiply
    560,015.70x = 840,023.55 × 204,911.70
  4. Step 4: Simplify right side
    560,015.70x = 172,130,653,670.54
  5. Step 5: Solve for x
    x = 172,130,653,670.54/560,015.70
  6. Step 6: Final answer
    x = 307,367.55

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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.