Home / 420,174.12-630,096.66-146,551.20

Finding the Fourth Proportional to 420,174.12, 630,096.66 and 146,551.20

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Solution

The fourth proportional to 420,174.12, 630,096.66 and 146,551.20 is: 219,769.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,174.12 : 630,096.66 = 146,551.20 : x
  2. Step 2: Convert to fraction form
    420,174.12/630,096.66 = 146,551.20/x
  3. Step 3: Cross multiply
    420,174.12x = 630,096.66 × 146,551.20
  4. Step 4: Simplify right side
    420,174.12x = 92,341,421,638.99
  5. Step 5: Solve for x
    x = 92,341,421,638.99/420,174.12
  6. Step 6: Final answer
    x = 219,769.42

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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.