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Finding the Fourth Proportional to 230,605.40, 346,053.90 and 135,835.40

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Solution

The fourth proportional to 230,605.40, 346,053.90 and 135,835.40 is: 203,838.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,605.40 : 346,053.90 = 135,835.40 : x
  2. Step 2: Convert to fraction form
    230,605.40/346,053.90 = 135,835.40/x
  3. Step 3: Cross multiply
    230,605.40x = 346,053.90 × 135,835.40
  4. Step 4: Simplify right side
    230,605.40x = 47,006,369,928.06
  5. Step 5: Solve for x
    x = 47,006,369,928.06/230,605.40
  6. Step 6: Final answer
    x = 203,838.98

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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.