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Finding the Fourth Proportional to 304,442.32, 420,131.22 and 168,485.64

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Solution

The fourth proportional to 304,442.32, 420,131.22 and 168,485.64 is: 232,510.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,442.32 : 420,131.22 = 168,485.64 : x
  2. Step 2: Convert to fraction form
    304,442.32/420,131.22 = 168,485.64/x
  3. Step 3: Cross multiply
    304,442.32x = 420,131.22 × 168,485.64
  4. Step 4: Simplify right side
    304,442.32x = 70,786,079,297.09
  5. Step 5: Solve for x
    x = 70,786,079,297.09/304,442.32
  6. Step 6: Final answer
    x = 232,510.64

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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.