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Finding the Fourth Proportional to 346,744.60, 520,289.70 and 197,099.80

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Solution

The fourth proportional to 346,744.60, 520,289.70 and 197,099.80 is: 295,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,744.60 : 520,289.70 = 197,099.80 : x
  2. Step 2: Convert to fraction form
    346,744.60/520,289.70 = 197,099.80/x
  3. Step 3: Cross multiply
    346,744.60x = 520,289.70 × 197,099.80
  4. Step 4: Simplify right side
    346,744.60x = 102,548,995,812.06
  5. Step 5: Solve for x
    x = 102,548,995,812.06/346,744.60
  6. Step 6: Final answer
    x = 295,747.92

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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.