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Finding the Fourth Proportional to 351,012.30, 526,518.45 and 307,709.70

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Solution

The fourth proportional to 351,012.30, 526,518.45 and 307,709.70 is: 461,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,012.30 : 526,518.45 = 307,709.70 : x
  2. Step 2: Convert to fraction form
    351,012.30/526,518.45 = 307,709.70/x
  3. Step 3: Cross multiply
    351,012.30x = 526,518.45 × 307,709.70
  4. Step 4: Simplify right side
    351,012.30x = 162,014,834,293.97
  5. Step 5: Solve for x
    x = 162,014,834,293.97/351,012.30
  6. Step 6: Final answer
    x = 461,564.55

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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.