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Finding the Fourth Proportional to 328,020.10, 492,030.15 and 106,404.10

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Solution

The fourth proportional to 328,020.10, 492,030.15 and 106,404.10 is: 159,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,020.10 : 492,030.15 = 106,404.10 : x
  2. Step 2: Convert to fraction form
    328,020.10/492,030.15 = 106,404.10/x
  3. Step 3: Cross multiply
    328,020.10x = 492,030.15 × 106,404.10
  4. Step 4: Simplify right side
    328,020.10x = 52,354,025,283.62
  5. Step 5: Solve for x
    x = 52,354,025,283.62/328,020.10
  6. Step 6: Final answer
    x = 159,606.15

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1.5x scale

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.