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Finding the Fourth Proportional to 401,881.80, 601,947.90 and 243,834.60

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Solution

The fourth proportional to 401,881.80, 601,947.90 and 243,834.60 is: 365,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,881.80 : 601,947.90 = 243,834.60 : x
  2. Step 2: Convert to fraction form
    401,881.80/601,947.90 = 243,834.60/x
  3. Step 3: Cross multiply
    401,881.80x = 601,947.90 × 243,834.60
  4. Step 4: Simplify right side
    401,881.80x = 146,775,725,417.34
  5. Step 5: Solve for x
    x = 146,775,725,417.34/401,881.80
  6. Step 6: Final answer
    x = 365,221.13

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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.