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Finding the Fourth Proportional to 306,015.66, 458,172.18 and 155,932.38

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Solution

The fourth proportional to 306,015.66, 458,172.18 and 155,932.38 is: 233,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,015.66 : 458,172.18 = 155,932.38 : x
  2. Step 2: Convert to fraction form
    306,015.66/458,172.18 = 155,932.38/x
  3. Step 3: Cross multiply
    306,015.66x = 458,172.18 × 155,932.38
  4. Step 4: Simplify right side
    306,015.66x = 71,443,878,477.19
  5. Step 5: Solve for x
    x = 71,443,878,477.19/306,015.66
  6. Step 6: Final answer
    x = 233,464.78

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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.