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Finding the Fourth Proportional to 216,864.51, 299,272.98 and 121,371.20

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Solution

The fourth proportional to 216,864.51, 299,272.98 and 121,371.20 is: 167,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,864.51 : 299,272.98 = 121,371.20 : x
  2. Step 2: Convert to fraction form
    216,864.51/299,272.98 = 121,371.20/x
  3. Step 3: Cross multiply
    216,864.51x = 299,272.98 × 121,371.20
  4. Step 4: Simplify right side
    216,864.51x = 36,323,120,950.22
  5. Step 5: Solve for x
    x = 36,323,120,950.22/216,864.51
  6. Step 6: Final answer
    x = 167,492.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.