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Finding the Fourth Proportional to 216,585.84, 298,899.67 and 124,718.77

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Solution

The fourth proportional to 216,585.84, 298,899.67 and 124,718.77 is: 172,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,585.84 : 298,899.67 = 124,718.77 : x
  2. Step 2: Convert to fraction form
    216,585.84/298,899.67 = 124,718.77/x
  3. Step 3: Cross multiply
    216,585.84x = 298,899.67 × 124,718.77
  4. Step 4: Simplify right side
    216,585.84x = 37,278,399,195.81
  5. Step 5: Solve for x
    x = 37,278,399,195.81/216,585.84
  6. Step 6: Final answer
    x = 172,118.36

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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.