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Finding the Fourth Proportional to 216,857.05, 299,252.53 and 118,738.51

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Solution

The fourth proportional to 216,857.05, 299,252.53 and 118,738.51 is: 163,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,857.05 : 299,252.53 = 118,738.51 : x
  2. Step 2: Convert to fraction form
    216,857.05/299,252.53 = 118,738.51/x
  3. Step 3: Cross multiply
    216,857.05x = 299,252.53 × 118,738.51
  4. Step 4: Simplify right side
    216,857.05x = 35,532,798,258.32
  5. Step 5: Solve for x
    x = 35,532,798,258.32/216,857.05
  6. Step 6: Final answer
    x = 163,853.56

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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.