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Finding the Fourth Proportional to 290,526.40, 400,974.09 and 242,051.54

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Solution

The fourth proportional to 290,526.40, 400,974.09 and 242,051.54 is: 334,070.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,526.40 : 400,974.09 = 242,051.54 : x
  2. Step 2: Convert to fraction form
    290,526.40/400,974.09 = 242,051.54/x
  3. Step 3: Cross multiply
    290,526.40x = 400,974.09 × 242,051.54
  4. Step 4: Simplify right side
    290,526.40x = 97,056,396,079.34
  5. Step 5: Solve for x
    x = 97,056,396,079.34/290,526.40
  6. Step 6: Final answer
    x = 334,070.83

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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.