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Finding the Fourth Proportional to 626,870.82, 940,299.75 and 153,558.66

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Solution

The fourth proportional to 626,870.82, 940,299.75 and 153,558.66 is: 230,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,870.82 : 940,299.75 = 153,558.66 : x
  2. Step 2: Convert to fraction form
    626,870.82/940,299.75 = 153,558.66/x
  3. Step 3: Cross multiply
    626,870.82x = 940,299.75 × 153,558.66
  4. Step 4: Simplify right side
    626,870.82x = 144,391,169,608.34
  5. Step 5: Solve for x
    x = 144,391,169,608.34/626,870.82
  6. Step 6: Final answer
    x = 230,336.40

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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.