Home / 216,439.19-298,492.70-135,874.21

Finding the Fourth Proportional to 216,439.19, 298,492.70 and 135,874.21

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Solution

The fourth proportional to 216,439.19, 298,492.70 and 135,874.21 is: 187,385.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,439.19 : 298,492.70 = 135,874.21 : x
  2. Step 2: Convert to fraction form
    216,439.19/298,492.70 = 135,874.21/x
  3. Step 3: Cross multiply
    216,439.19x = 298,492.70 × 135,874.21
  4. Step 4: Simplify right side
    216,439.19x = 40,557,458,937.34
  5. Step 5: Solve for x
    x = 40,557,458,937.34/216,439.19
  6. Step 6: Final answer
    x = 187,385.01

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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.