Home / 216,660.18-298,990.03-121,167.26

Finding the Fourth Proportional to 216,660.18, 298,990.03 and 121,167.26

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Solution

The fourth proportional to 216,660.18, 298,990.03 and 121,167.26 is: 167,210.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,660.18 : 298,990.03 = 121,167.26 : x
  2. Step 2: Convert to fraction form
    216,660.18/298,990.03 = 121,167.26/x
  3. Step 3: Cross multiply
    216,660.18x = 298,990.03 × 121,167.26
  4. Step 4: Simplify right side
    216,660.18x = 36,227,802,702.42
  5. Step 5: Solve for x
    x = 36,227,802,702.42/216,660.18
  6. Step 6: Final answer
    x = 167,210.25

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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.