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Finding the Fourth Proportional to 290,818.84, 436,355.72 and 141,174.04

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Solution

The fourth proportional to 290,818.84, 436,355.72 and 141,174.04 is: 211,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,818.84 : 436,355.72 = 141,174.04 : x
  2. Step 2: Convert to fraction form
    290,818.84/436,355.72 = 141,174.04/x
  3. Step 3: Cross multiply
    290,818.84x = 436,355.72 × 141,174.04
  4. Step 4: Simplify right side
    290,818.84x = 61,602,099,869.51
  5. Step 5: Solve for x
    x = 61,602,099,869.51/290,818.84
  6. Step 6: Final answer
    x = 211,822.93

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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.