Home / 216,511.75-298,792.51-118,400.76

Finding the Fourth Proportional to 216,511.75, 298,792.51 and 118,400.76

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Solution

The fourth proportional to 216,511.75, 298,792.51 and 118,400.76 is: 163,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,511.75 : 298,792.51 = 118,400.76 : x
  2. Step 2: Convert to fraction form
    216,511.75/298,792.51 = 118,400.76/x
  3. Step 3: Cross multiply
    216,511.75x = 298,792.51 × 118,400.76
  4. Step 4: Simplify right side
    216,511.75x = 35,377,258,180.34
  5. Step 5: Solve for x
    x = 35,377,258,180.34/216,511.75
  6. Step 6: Final answer
    x = 163,396.48

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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.