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Finding the Fourth Proportional to 245,430.70, 367,930.05 and 166,288.30

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Solution

The fourth proportional to 245,430.70, 367,930.05 and 166,288.30 is: 249,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,430.70 : 367,930.05 = 166,288.30 : x
  2. Step 2: Convert to fraction form
    245,430.70/367,930.05 = 166,288.30/x
  3. Step 3: Cross multiply
    245,430.70x = 367,930.05 × 166,288.30
  4. Step 4: Simplify right side
    245,430.70x = 61,182,462,533.42
  5. Step 5: Solve for x
    x = 61,182,462,533.42/245,430.70
  6. Step 6: Final answer
    x = 249,286.10

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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.