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Finding the Fourth Proportional to 346,159.80, 518,850.90 and 146,446.20

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Solution

The fourth proportional to 346,159.80, 518,850.90 and 146,446.20 is: 219,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,159.80 : 518,850.90 = 146,446.20 : x
  2. Step 2: Convert to fraction form
    346,159.80/518,850.90 = 146,446.20/x
  3. Step 3: Cross multiply
    346,159.80x = 518,850.90 × 146,446.20
  4. Step 4: Simplify right side
    346,159.80x = 75,983,742,671.58
  5. Step 5: Solve for x
    x = 75,983,742,671.58/346,159.80
  6. Step 6: Final answer
    x = 219,504.81

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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.