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Finding the Fourth Proportional to 207,988.04, 287,023.55 and 117,363.21

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Solution

The fourth proportional to 207,988.04, 287,023.55 and 117,363.21 is: 161,961.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,988.04 : 287,023.55 = 117,363.21 : x
  2. Step 2: Convert to fraction form
    207,988.04/287,023.55 = 117,363.21/x
  3. Step 3: Cross multiply
    207,988.04x = 287,023.55 × 117,363.21
  4. Step 4: Simplify right side
    207,988.04x = 33,686,005,173.60
  5. Step 5: Solve for x
    x = 33,686,005,173.60/207,988.04
  6. Step 6: Final answer
    x = 161,961.26

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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.