Home / 209,322.30-288,889.12-117,466.86

Finding the Fourth Proportional to 209,322.30, 288,889.12 and 117,466.86

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Solution

The fourth proportional to 209,322.30, 288,889.12 and 117,466.86 is: 162,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,322.30 : 288,889.12 = 117,466.86 : x
  2. Step 2: Convert to fraction form
    209,322.30/288,889.12 = 117,466.86/x
  3. Step 3: Cross multiply
    209,322.30x = 288,889.12 × 117,466.86
  4. Step 4: Simplify right side
    209,322.30x = 33,934,897,814.56
  5. Step 5: Solve for x
    x = 33,934,897,814.56/209,322.30
  6. Step 6: Final answer
    x = 162,117.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.