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Finding the Fourth Proportional to 213,214.59, 294,239.93 and 117,715.59

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Solution

The fourth proportional to 213,214.59, 294,239.93 and 117,715.59 is: 162,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,214.59 : 294,239.93 = 117,715.59 : x
  2. Step 2: Convert to fraction form
    213,214.59/294,239.93 = 117,715.59/x
  3. Step 3: Cross multiply
    213,214.59x = 294,239.93 × 117,715.59
  4. Step 4: Simplify right side
    213,214.59x = 34,636,626,372.93
  5. Step 5: Solve for x
    x = 34,636,626,372.93/213,214.59
  6. Step 6: Final answer
    x = 162,449.61

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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.