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Finding the Fourth Proportional to 287,384.91, 396,603.44 and 160,060.52

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Solution

The fourth proportional to 287,384.91, 396,603.44 and 160,060.52 is: 220,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,384.91 : 396,603.44 = 160,060.52 : x
  2. Step 2: Convert to fraction form
    287,384.91/396,603.44 = 160,060.52/x
  3. Step 3: Cross multiply
    287,384.91x = 396,603.44 × 160,060.52
  4. Step 4: Simplify right side
    287,384.91x = 63,480,550,056.87
  5. Step 5: Solve for x
    x = 63,480,550,056.87/287,384.91
  6. Step 6: Final answer
    x = 220,890.34

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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.