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Finding the Fourth Proportional to 340,374.30, 469,861.90 and 242,320.82

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Solution

The fourth proportional to 340,374.30, 469,861.90 and 242,320.82 is: 334,506.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,374.30 : 469,861.90 = 242,320.82 : x
  2. Step 2: Convert to fraction form
    340,374.30/469,861.90 = 242,320.82/x
  3. Step 3: Cross multiply
    340,374.30x = 469,861.90 × 242,320.82
  4. Step 4: Simplify right side
    340,374.30x = 113,857,320,894.76
  5. Step 5: Solve for x
    x = 113,857,320,894.76/340,374.30
  6. Step 6: Final answer
    x = 334,506.22

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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.