Home / 211,066.60-316,139.10-163,949.80

Finding the Fourth Proportional to 211,066.60, 316,139.10 and 163,949.80

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Solution

The fourth proportional to 211,066.60, 316,139.10 and 163,949.80 is: 245,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,066.60 : 316,139.10 = 163,949.80 : x
  2. Step 2: Convert to fraction form
    211,066.60/316,139.10 = 163,949.80/x
  3. Step 3: Cross multiply
    211,066.60x = 316,139.10 × 163,949.80
  4. Step 4: Simplify right side
    211,066.60x = 51,830,942,217.18
  5. Step 5: Solve for x
    x = 51,830,942,217.18/211,066.60
  6. Step 6: Final answer
    x = 245,566.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.