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Finding the Fourth Proportional to 410,015.70, 615,023.55 and 251,730.90

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Solution

The fourth proportional to 410,015.70, 615,023.55 and 251,730.90 is: 377,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,015.70 : 615,023.55 = 251,730.90 : x
  2. Step 2: Convert to fraction form
    410,015.70/615,023.55 = 251,730.90/x
  3. Step 3: Cross multiply
    410,015.70x = 615,023.55 × 251,730.90
  4. Step 4: Simplify right side
    410,015.70x = 154,820,431,762.70
  5. Step 5: Solve for x
    x = 154,820,431,762.70/410,015.70
  6. Step 6: Final answer
    x = 377,596.35

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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.