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Finding the Fourth Proportional to 547,201.79, 755,145.94 and 302,203.07

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Solution

The fourth proportional to 547,201.79, 755,145.94 and 302,203.07 is: 417,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,201.79 : 755,145.94 = 302,203.07 : x
  2. Step 2: Convert to fraction form
    547,201.79/755,145.94 = 302,203.07/x
  3. Step 3: Cross multiply
    547,201.79x = 755,145.94 × 302,203.07
  4. Step 4: Simplify right side
    547,201.79x = 228,207,421,366.04
  5. Step 5: Solve for x
    x = 228,207,421,366.04/547,201.79
  6. Step 6: Final answer
    x = 417,044.36

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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.