Home / 211,831.52-317,746.22-99,511.15

Finding the Fourth Proportional to 211,831.52, 317,746.22 and 99,511.15

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Solution

The fourth proportional to 211,831.52, 317,746.22 and 99,511.15 is: 149,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,831.52 : 317,746.22 = 99,511.15 : x
  2. Step 2: Convert to fraction form
    211,831.52/317,746.22 = 99,511.15/x
  3. Step 3: Cross multiply
    211,831.52x = 317,746.22 × 99,511.15
  4. Step 4: Simplify right side
    211,831.52x = 31,619,290,468.43
  5. Step 5: Solve for x
    x = 31,619,290,468.43/211,831.52
  6. Step 6: Final answer
    x = 149,266.22

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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.