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Finding the Fourth Proportional to 294,051.50, 405,791.08 and 159,915.50

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Solution

The fourth proportional to 294,051.50, 405,791.08 and 159,915.50 is: 220,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,051.50 : 405,791.08 = 159,915.50 : x
  2. Step 2: Convert to fraction form
    294,051.50/405,791.08 = 159,915.50/x
  3. Step 3: Cross multiply
    294,051.50x = 405,791.08 × 159,915.50
  4. Step 4: Simplify right side
    294,051.50x = 64,892,283,453.74
  5. Step 5: Solve for x
    x = 64,892,283,453.74/294,051.50
  6. Step 6: Final answer
    x = 220,683.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.