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Finding the Fourth Proportional to 374,341, 561,351.66 and 216,678.28

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Solution

The fourth proportional to 374,341, 561,351.66 and 216,678.28 is: 324,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,341 : 561,351.66 = 216,678.28 : x
  2. Step 2: Convert to fraction form
    374,341/561,351.66 = 216,678.28/x
  3. Step 3: Cross multiply
    374,341x = 561,351.66 × 216,678.28
  4. Step 4: Simplify right side
    374,341x = 121,632,712,163.95
  5. Step 5: Solve for x
    x = 121,632,712,163.95/374,341
  6. Step 6: Final answer
    x = 324,924.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.