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Finding the Fourth Proportional to 304,601.50, 420,291.72 and 197,156.62

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Solution

The fourth proportional to 304,601.50, 420,291.72 and 197,156.62 is: 272,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,601.50 : 420,291.72 = 197,156.62 : x
  2. Step 2: Convert to fraction form
    304,601.50/420,291.72 = 197,156.62/x
  3. Step 3: Cross multiply
    304,601.50x = 420,291.72 × 197,156.62
  4. Step 4: Simplify right side
    304,601.50x = 82,863,294,929.19
  5. Step 5: Solve for x
    x = 82,863,294,929.19/304,601.50
  6. Step 6: Final answer
    x = 272,038.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.