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Finding the Fourth Proportional to 207,188.82, 285,817.06 and 130,802.58

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Solution

The fourth proportional to 207,188.82, 285,817.06 and 130,802.58 is: 180,442.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,188.82 : 285,817.06 = 130,802.58 : x
  2. Step 2: Convert to fraction form
    207,188.82/285,817.06 = 130,802.58/x
  3. Step 3: Cross multiply
    207,188.82x = 285,817.06 × 130,802.58
  4. Step 4: Simplify right side
    207,188.82x = 37,385,607,099.92
  5. Step 5: Solve for x
    x = 37,385,607,099.92/207,188.82
  6. Step 6: Final answer
    x = 180,442.21

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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.