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Finding the Fourth Proportional to 213,421.26, 294,511.90 and 117,925.90

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Solution

The fourth proportional to 213,421.26, 294,511.90 and 117,925.90 is: 162,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,421.26 : 294,511.90 = 117,925.90 : x
  2. Step 2: Convert to fraction form
    213,421.26/294,511.90 = 117,925.90/x
  3. Step 3: Cross multiply
    213,421.26x = 294,511.90 × 117,925.90
  4. Step 4: Simplify right side
    213,421.26x = 34,730,580,868.21
  5. Step 5: Solve for x
    x = 34,730,580,868.21/213,421.26
  6. Step 6: Final answer
    x = 162,732.53

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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.