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Finding the Fourth Proportional to 207,696.64, 286,621.20 and 112,203.32

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Solution

The fourth proportional to 207,696.64, 286,621.20 and 112,203.32 is: 154,840.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,696.64 : 286,621.20 = 112,203.32 : x
  2. Step 2: Convert to fraction form
    207,696.64/286,621.20 = 112,203.32/x
  3. Step 3: Cross multiply
    207,696.64x = 286,621.20 × 112,203.32
  4. Step 4: Simplify right side
    207,696.64x = 32,159,850,222.38
  5. Step 5: Solve for x
    x = 32,159,850,222.38/207,696.64
  6. Step 6: Final answer
    x = 154,840.49

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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.