Home / 328,817.10-492,350.85-209,844.30

Finding the Fourth Proportional to 328,817.10, 492,350.85 and 209,844.30

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Solution

The fourth proportional to 328,817.10, 492,350.85 and 209,844.30 is: 314,208.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,817.10 : 492,350.85 = 209,844.30 : x
  2. Step 2: Convert to fraction form
    328,817.10/492,350.85 = 209,844.30/x
  3. Step 3: Cross multiply
    328,817.10x = 492,350.85 × 209,844.30
  4. Step 4: Simplify right side
    328,817.10x = 103,317,019,472.66
  5. Step 5: Solve for x
    x = 103,317,019,472.66/328,817.10
  6. Step 6: Final answer
    x = 314,208.17

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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.