Home / 216,390.21-298,701.83-193,689.15

Finding the Fourth Proportional to 216,390.21, 298,701.83 and 193,689.15

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Solution

The fourth proportional to 216,390.21, 298,701.83 and 193,689.15 is: 267,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,390.21 : 298,701.83 = 193,689.15 : x
  2. Step 2: Convert to fraction form
    216,390.21/298,701.83 = 193,689.15/x
  3. Step 3: Cross multiply
    216,390.21x = 298,701.83 × 193,689.15
  4. Step 4: Simplify right side
    216,390.21x = 57,855,302,670.83
  5. Step 5: Solve for x
    x = 57,855,302,670.83/216,390.21
  6. Step 6: Final answer
    x = 267,365.62

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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.