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Finding the Fourth Proportional to 215,090.65, 296,828.49 and 118,298.71

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Solution

The fourth proportional to 215,090.65, 296,828.49 and 118,298.71 is: 163,254.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,090.65 : 296,828.49 = 118,298.71 : x
  2. Step 2: Convert to fraction form
    215,090.65/296,828.49 = 118,298.71/x
  3. Step 3: Cross multiply
    215,090.65x = 296,828.49 × 118,298.71
  4. Step 4: Simplify right side
    215,090.65x = 35,114,427,458.25
  5. Step 5: Solve for x
    x = 35,114,427,458.25/215,090.65
  6. Step 6: Final answer
    x = 163,254.09

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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.