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Finding the Fourth Proportional to 328,228.40, 492,342.60 and 187,888.16

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Solution

The fourth proportional to 328,228.40, 492,342.60 and 187,888.16 is: 281,832.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,228.40 : 492,342.60 = 187,888.16 : x
  2. Step 2: Convert to fraction form
    328,228.40/492,342.60 = 187,888.16/x
  3. Step 3: Cross multiply
    328,228.40x = 492,342.60 × 187,888.16
  4. Step 4: Simplify right side
    328,228.40x = 92,505,345,203.62
  5. Step 5: Solve for x
    x = 92,505,345,203.62/328,228.40
  6. Step 6: Final answer
    x = 281,832.24

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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.