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Finding the Fourth Proportional to 215,032.80, 296,748.96 and 118,240.80

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Solution

The fourth proportional to 215,032.80, 296,748.96 and 118,240.80 is: 163,174.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,032.80 : 296,748.96 = 118,240.80 : x
  2. Step 2: Convert to fraction form
    215,032.80/296,748.96 = 118,240.80/x
  3. Step 3: Cross multiply
    215,032.80x = 296,748.96 × 118,240.80
  4. Step 4: Simplify right side
    215,032.80x = 35,087,834,429.57
  5. Step 5: Solve for x
    x = 35,087,834,429.57/215,032.80
  6. Step 6: Final answer
    x = 163,174.34

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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.