Home / 211,898.48-317,981.64-118,465.52

Finding the Fourth Proportional to 211,898.48, 317,981.64 and 118,465.52

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Solution

The fourth proportional to 211,898.48, 317,981.64 and 118,465.52 is: 177,773.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,898.48 : 317,981.64 = 118,465.52 : x
  2. Step 2: Convert to fraction form
    211,898.48/317,981.64 = 118,465.52/x
  3. Step 3: Cross multiply
    211,898.48x = 317,981.64 × 118,465.52
  4. Step 4: Simplify right side
    211,898.48x = 37,669,860,333.05
  5. Step 5: Solve for x
    x = 37,669,860,333.05/211,898.48
  6. Step 6: Final answer
    x = 177,773.15

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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.