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Finding the Fourth Proportional to 216,511.87, 298,784.54 and 119,718.22

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Solution

The fourth proportional to 216,511.87, 298,784.54 and 119,718.22 is: 165,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,511.87 : 298,784.54 = 119,718.22 : x
  2. Step 2: Convert to fraction form
    216,511.87/298,784.54 = 119,718.22/x
  3. Step 3: Cross multiply
    216,511.87x = 298,784.54 × 119,718.22
  4. Step 4: Simplify right side
    216,511.87x = 35,769,953,292.32
  5. Step 5: Solve for x
    x = 35,769,953,292.32/216,511.87
  6. Step 6: Final answer
    x = 165,210.13

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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.