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Finding the Fourth Proportional to 216,637.95, 325,116.63 and 102,786.24

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Solution

The fourth proportional to 216,637.95, 325,116.63 and 102,786.24 is: 154,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,637.95 : 325,116.63 = 102,786.24 : x
  2. Step 2: Convert to fraction form
    216,637.95/325,116.63 = 102,786.24/x
  3. Step 3: Cross multiply
    216,637.95x = 325,116.63 × 102,786.24
  4. Step 4: Simplify right side
    216,637.95x = 33,417,515,959.17
  5. Step 5: Solve for x
    x = 33,417,515,959.17/216,637.95
  6. Step 6: Final answer
    x = 154,255.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.