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Finding the Fourth Proportional to 216,581.54, 298,803.21 and 130,559.54

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Solution

The fourth proportional to 216,581.54, 298,803.21 and 130,559.54 is: 180,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,581.54 : 298,803.21 = 130,559.54 : x
  2. Step 2: Convert to fraction form
    216,581.54/298,803.21 = 130,559.54/x
  3. Step 3: Cross multiply
    216,581.54x = 298,803.21 × 130,559.54
  4. Step 4: Simplify right side
    216,581.54x = 39,011,609,648.12
  5. Step 5: Solve for x
    x = 39,011,609,648.12/216,581.54
  6. Step 6: Final answer
    x = 180,124.35

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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.