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Finding the Fourth Proportional to 238,982.40, 357,890.40 and 228,484.80

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Solution

The fourth proportional to 238,982.40, 357,890.40 and 228,484.80 is: 342,169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,982.40 : 357,890.40 = 228,484.80 : x
  2. Step 2: Convert to fraction form
    238,982.40/357,890.40 = 228,484.80/x
  3. Step 3: Cross multiply
    238,982.40x = 357,890.40 × 228,484.80
  4. Step 4: Simplify right side
    238,982.40x = 81,772,516,465.92
  5. Step 5: Solve for x
    x = 81,772,516,465.92/238,982.40
  6. Step 6: Final answer
    x = 342,169.62

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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.