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Finding the Fourth Proportional to 367,911.76, 507,717.72 and 215,055.04

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Solution

The fourth proportional to 367,911.76, 507,717.72 and 215,055.04 is: 296,775.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,911.76 : 507,717.72 = 215,055.04 : x
  2. Step 2: Convert to fraction form
    367,911.76/507,717.72 = 215,055.04/x
  3. Step 3: Cross multiply
    367,911.76x = 507,717.72 × 215,055.04
  4. Step 4: Simplify right side
    367,911.76x = 109,187,254,583.31
  5. Step 5: Solve for x
    x = 109,187,254,583.31/367,911.76
  6. Step 6: Final answer
    x = 296,775.66

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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.