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Finding the Fourth Proportional to 402,004.53, 554,767.37 and 220,728.21

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Solution

The fourth proportional to 402,004.53, 554,767.37 and 220,728.21 is: 304,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,004.53 : 554,767.37 = 220,728.21 : x
  2. Step 2: Convert to fraction form
    402,004.53/554,767.37 = 220,728.21/x
  3. Step 3: Cross multiply
    402,004.53x = 554,767.37 × 220,728.21
  4. Step 4: Simplify right side
    402,004.53x = 122,452,807,442.87
  5. Step 5: Solve for x
    x = 122,452,807,442.87/402,004.53
  6. Step 6: Final answer
    x = 304,605.54

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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.