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Finding the Fourth Proportional to 346,637.80, 520,032.30 and 196,949.80

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Solution

The fourth proportional to 346,637.80, 520,032.30 and 196,949.80 is: 295,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,637.80 : 520,032.30 = 196,949.80 : x
  2. Step 2: Convert to fraction form
    346,637.80/520,032.30 = 196,949.80/x
  3. Step 3: Cross multiply
    346,637.80x = 520,032.30 × 196,949.80
  4. Step 4: Simplify right side
    346,637.80x = 102,420,257,478.54
  5. Step 5: Solve for x
    x = 102,420,257,478.54/346,637.80
  6. Step 6: Final answer
    x = 295,467.65

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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.