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Finding the Fourth Proportional to 374,068.06, 561,181 and 121,328.93

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Solution

The fourth proportional to 374,068.06, 561,181 and 121,328.93 is: 182,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,068.06 : 561,181 = 121,328.93 : x
  2. Step 2: Convert to fraction form
    374,068.06/561,181 = 121,328.93/x
  3. Step 3: Cross multiply
    374,068.06x = 561,181 × 121,328.93
  4. Step 4: Simplify right side
    374,068.06x = 68,087,490,266.33
  5. Step 5: Solve for x
    x = 68,087,490,266.33/374,068.06
  6. Step 6: Final answer
    x = 182,018.99

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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.