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Finding the Fourth Proportional to 279,237.84, 385,175.43 and 243,513.60

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Solution

The fourth proportional to 279,237.84, 385,175.43 and 243,513.60 is: 335,898.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,237.84 : 385,175.43 = 243,513.60 : x
  2. Step 2: Convert to fraction form
    279,237.84/385,175.43 = 243,513.60/x
  3. Step 3: Cross multiply
    279,237.84x = 385,175.43 × 243,513.60
  4. Step 4: Simplify right side
    279,237.84x = 93,795,455,590.85
  5. Step 5: Solve for x
    x = 93,795,455,590.85/279,237.84
  6. Step 6: Final answer
    x = 335,898.08

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1.5x scale

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.