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Finding the Fourth Proportional to 207,616, 286,510.40 and 118,192

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Solution

The fourth proportional to 207,616, 286,510.40 and 118,192 is: 163,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,616 : 286,510.40 = 118,192 : x
  2. Step 2: Convert to fraction form
    207,616/286,510.40 = 118,192/x
  3. Step 3: Cross multiply
    207,616x = 286,510.40 × 118,192
  4. Step 4: Simplify right side
    207,616x = 33,863,237,196.80
  5. Step 5: Solve for x
    x = 33,863,237,196.80/207,616
  6. Step 6: Final answer
    x = 163,105.14

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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.