Home / 211,154.32-316,778.20-116,335.68

Finding the Fourth Proportional to 211,154.32, 316,778.20 and 116,335.68

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Solution

The fourth proportional to 211,154.32, 316,778.20 and 116,335.68 is: 174,529.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,154.32 : 316,778.20 = 116,335.68 : x
  2. Step 2: Convert to fraction form
    211,154.32/316,778.20 = 116,335.68/x
  3. Step 3: Cross multiply
    211,154.32x = 316,778.20 × 116,335.68
  4. Step 4: Simplify right side
    211,154.32x = 36,852,607,306.18
  5. Step 5: Solve for x
    x = 36,852,607,306.18/211,154.32
  6. Step 6: Final answer
    x = 174,529.26

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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.