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Finding the Fourth Proportional to 346,929.66, 478,756.71 and 196,023.42

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Solution

The fourth proportional to 346,929.66, 478,756.71 and 196,023.42 is: 270,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,929.66 : 478,756.71 = 196,023.42 : x
  2. Step 2: Convert to fraction form
    346,929.66/478,756.71 = 196,023.42/x
  3. Step 3: Cross multiply
    346,929.66x = 478,756.71 × 196,023.42
  4. Step 4: Simplify right side
    346,929.66x = 93,847,527,642.15
  5. Step 5: Solve for x
    x = 93,847,527,642.15/346,929.66
  6. Step 6: Final answer
    x = 270,508.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.