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Finding the Fourth Proportional to 346,464.20, 520,230.90 and 189,000.20

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Solution

The fourth proportional to 346,464.20, 520,230.90 and 189,000.20 is: 283,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,464.20 : 520,230.90 = 189,000.20 : x
  2. Step 2: Convert to fraction form
    346,464.20/520,230.90 = 189,000.20/x
  3. Step 3: Cross multiply
    346,464.20x = 520,230.90 × 189,000.20
  4. Step 4: Simplify right side
    346,464.20x = 98,323,744,146.18
  5. Step 5: Solve for x
    x = 98,323,744,146.18/346,464.20
  6. Step 6: Final answer
    x = 283,791.93

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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.