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Finding the Fourth Proportional to 216,301.56, 298,492.98 and 120,809.58

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Solution

The fourth proportional to 216,301.56, 298,492.98 and 120,809.58 is: 166,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,301.56 : 298,492.98 = 120,809.58 : x
  2. Step 2: Convert to fraction form
    216,301.56/298,492.98 = 120,809.58/x
  3. Step 3: Cross multiply
    216,301.56x = 298,492.98 × 120,809.58
  4. Step 4: Simplify right side
    216,301.56x = 36,060,811,546.75
  5. Step 5: Solve for x
    x = 36,060,811,546.75/216,301.56
  6. Step 6: Final answer
    x = 166,715.45

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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.