Home / 211,776.08-317,615.60-126,411.04

Finding the Fourth Proportional to 211,776.08, 317,615.60 and 126,411.04

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Solution

The fourth proportional to 211,776.08, 317,615.60 and 126,411.04 is: 189,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,776.08 : 317,615.60 = 126,411.04 : x
  2. Step 2: Convert to fraction form
    211,776.08/317,615.60 = 126,411.04/x
  3. Step 3: Cross multiply
    211,776.08x = 317,615.60 × 126,411.04
  4. Step 4: Simplify right side
    211,776.08x = 40,150,118,316.22
  5. Step 5: Solve for x
    x = 40,150,118,316.22/211,776.08
  6. Step 6: Final answer
    x = 189,587.60

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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.