Home / 216,466.10-298,761.73-129,256.82

Finding the Fourth Proportional to 216,466.10, 298,761.73 and 129,256.82

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Solution

The fourth proportional to 216,466.10, 298,761.73 and 129,256.82 is: 178,397.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,466.10 : 298,761.73 = 129,256.82 : x
  2. Step 2: Convert to fraction form
    216,466.10/298,761.73 = 129,256.82/x
  3. Step 3: Cross multiply
    216,466.10x = 298,761.73 × 129,256.82
  4. Step 4: Simplify right side
    216,466.10x = 38,616,991,157.50
  5. Step 5: Solve for x
    x = 38,616,991,157.50/216,466.10
  6. Step 6: Final answer
    x = 178,397.41

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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.