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Finding the Fourth Proportional to 340,702.87, 470,190.86 and 187,740.97

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Solution

The fourth proportional to 340,702.87, 470,190.86 and 187,740.97 is: 259,094.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,702.87 : 470,190.86 = 187,740.97 : x
  2. Step 2: Convert to fraction form
    340,702.87/470,190.86 = 187,740.97/x
  3. Step 3: Cross multiply
    340,702.87x = 470,190.86 × 187,740.97
  4. Step 4: Simplify right side
    340,702.87x = 88,274,088,141.53
  5. Step 5: Solve for x
    x = 88,274,088,141.53/340,702.87
  6. Step 6: Final answer
    x = 259,094.06

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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.