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Finding the Fourth Proportional to 379,688.90, 570,567.98 and 202,322.66

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Solution

The fourth proportional to 379,688.90, 570,567.98 and 202,322.66 is: 304,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,688.90 : 570,567.98 = 202,322.66 : x
  2. Step 2: Convert to fraction form
    379,688.90/570,567.98 = 202,322.66/x
  3. Step 3: Cross multiply
    379,688.90x = 570,567.98 × 202,322.66
  4. Step 4: Simplify right side
    379,688.90x = 115,438,829,077.39
  5. Step 5: Solve for x
    x = 115,438,829,077.39/379,688.90
  6. Step 6: Final answer
    x = 304,035.31

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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.