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Finding the Fourth Proportional to 207,989.04, 287,024.93 and 117,364.21

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Solution

The fourth proportional to 207,989.04, 287,024.93 and 117,364.21 is: 161,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,989.04 : 287,024.93 = 117,364.21 : x
  2. Step 2: Convert to fraction form
    207,989.04/287,024.93 = 117,364.21/x
  3. Step 3: Cross multiply
    207,989.04x = 287,024.93 × 117,364.21
  4. Step 4: Simplify right side
    207,989.04x = 33,686,454,159.76
  5. Step 5: Solve for x
    x = 33,686,454,159.76/207,989.04
  6. Step 6: Final answer
    x = 161,962.64

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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.