Home / 216,502.40-298,865.44-131,646.72

Finding the Fourth Proportional to 216,502.40, 298,865.44 and 131,646.72

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Solution

The fourth proportional to 216,502.40, 298,865.44 and 131,646.72 is: 181,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,502.40 : 298,865.44 = 131,646.72 : x
  2. Step 2: Convert to fraction form
    216,502.40/298,865.44 = 131,646.72/x
  3. Step 3: Cross multiply
    216,502.40x = 298,865.44 × 131,646.72
  4. Step 4: Simplify right side
    216,502.40x = 39,344,654,897.36
  5. Step 5: Solve for x
    x = 39,344,654,897.36/216,502.40
  6. Step 6: Final answer
    x = 181,728.49

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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.