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Finding the Fourth Proportional to 230,986.30, 346,329.60 and 97,830.40

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Solution

The fourth proportional to 230,986.30, 346,329.60 and 97,830.40 is: 146,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,986.30 : 346,329.60 = 97,830.40 : x
  2. Step 2: Convert to fraction form
    230,986.30/346,329.60 = 97,830.40/x
  3. Step 3: Cross multiply
    230,986.30x = 346,329.60 × 97,830.40
  4. Step 4: Simplify right side
    230,986.30x = 33,881,563,299.84
  5. Step 5: Solve for x
    x = 33,881,563,299.84/230,986.30
  6. Step 6: Final answer
    x = 146,682.13

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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.