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Finding the Fourth Proportional to 238,975.20, 358,462.80 and 228,477.60

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Solution

The fourth proportional to 238,975.20, 358,462.80 and 228,477.60 is: 342,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,975.20 : 358,462.80 = 228,477.60 : x
  2. Step 2: Convert to fraction form
    238,975.20/358,462.80 = 228,477.60/x
  3. Step 3: Cross multiply
    238,975.20x = 358,462.80 × 228,477.60
  4. Step 4: Simplify right side
    238,975.20x = 81,900,720,233.28
  5. Step 5: Solve for x
    x = 81,900,720,233.28/238,975.20
  6. Step 6: Final answer
    x = 342,716.40

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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.