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Finding the Fourth Proportional to 243,028.70, 340,590.10 and 243,028.70

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Solution

The fourth proportional to 243,028.70, 340,590.10 and 243,028.70 is: 340,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,028.70 : 340,590.10 = 243,028.70 : x
  2. Step 2: Convert to fraction form
    243,028.70/340,590.10 = 243,028.70/x
  3. Step 3: Cross multiply
    243,028.70x = 340,590.10 × 243,028.70
  4. Step 4: Simplify right side
    243,028.70x = 82,773,169,235.87
  5. Step 5: Solve for x
    x = 82,773,169,235.87/243,028.70
  6. Step 6: Final answer
    x = 340,590.10

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.