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Finding the Fourth Proportional to 379,483.40, 569,881.20 and 202,336.40

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Solution

The fourth proportional to 379,483.40, 569,881.20 and 202,336.40 is: 303,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,483.40 : 569,881.20 = 202,336.40 : x
  2. Step 2: Convert to fraction form
    379,483.40/569,881.20 = 202,336.40/x
  3. Step 3: Cross multiply
    379,483.40x = 569,881.20 × 202,336.40
  4. Step 4: Simplify right side
    379,483.40x = 115,307,710,435.68
  5. Step 5: Solve for x
    x = 115,307,710,435.68/379,483.40
  6. Step 6: Final answer
    x = 303,854.43

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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.