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Finding the Fourth Proportional to 268,323.87, 370,285.70 and 153,601.88

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Solution

The fourth proportional to 268,323.87, 370,285.70 and 153,601.88 is: 211,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,323.87 : 370,285.70 = 153,601.88 : x
  2. Step 2: Convert to fraction form
    268,323.87/370,285.70 = 153,601.88/x
  3. Step 3: Cross multiply
    268,323.87x = 370,285.70 × 153,601.88
  4. Step 4: Simplify right side
    268,323.87x = 56,876,579,657.12
  5. Step 5: Solve for x
    x = 56,876,579,657.12/268,323.87
  6. Step 6: Final answer
    x = 211,969.88

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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.