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Finding the Fourth Proportional to 346,800.25, 520,495.64 and 136,585.81

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Solution

The fourth proportional to 346,800.25, 520,495.64 and 136,585.81 is: 204,995.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,800.25 : 520,495.64 = 136,585.81 : x
  2. Step 2: Convert to fraction form
    346,800.25/520,495.64 = 136,585.81/x
  3. Step 3: Cross multiply
    346,800.25x = 520,495.64 × 136,585.81
  4. Step 4: Simplify right side
    346,800.25x = 71,092,318,590.87
  5. Step 5: Solve for x
    x = 71,092,318,590.87/346,800.25
  6. Step 6: Final answer
    x = 204,995.00

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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.