Home / 215,090.70-296,828.94-118,305

Finding the Fourth Proportional to 215,090.70, 296,828.94 and 118,305

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Solution

The fourth proportional to 215,090.70, 296,828.94 and 118,305 is: 163,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,090.70 : 296,828.94 = 118,305 : x
  2. Step 2: Convert to fraction form
    215,090.70/296,828.94 = 118,305/x
  3. Step 3: Cross multiply
    215,090.70x = 296,828.94 × 118,305
  4. Step 4: Simplify right side
    215,090.70x = 35,116,347,746.70
  5. Step 5: Solve for x
    x = 35,116,347,746.70/215,090.70
  6. Step 6: Final answer
    x = 163,262.98

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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.