Home / 216,390.18-298,614.06-131,534.58

Finding the Fourth Proportional to 216,390.18, 298,614.06 and 131,534.58

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Solution

The fourth proportional to 216,390.18, 298,614.06 and 131,534.58 is: 181,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,390.18 : 298,614.06 = 131,534.58 : x
  2. Step 2: Convert to fraction form
    216,390.18/298,614.06 = 131,534.58/x
  3. Step 3: Cross multiply
    216,390.18x = 298,614.06 × 131,534.58
  4. Step 4: Simplify right side
    216,390.18x = 39,278,074,964.19
  5. Step 5: Solve for x
    x = 39,278,074,964.19/216,390.18
  6. Step 6: Final answer
    x = 181,515.05

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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.