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Finding the Fourth Proportional to 286,011, 393,295.50 and 248,219.64

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Solution

The fourth proportional to 286,011, 393,295.50 and 248,219.64 is: 341,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011 : 393,295.50 = 248,219.64 : x
  2. Step 2: Convert to fraction form
    286,011/393,295.50 = 248,219.64/x
  3. Step 3: Cross multiply
    286,011x = 393,295.50 × 248,219.64
  4. Step 4: Simplify right side
    286,011x = 97,623,667,423.62
  5. Step 5: Solve for x
    x = 97,623,667,423.62/286,011
  6. Step 6: Final answer
    x = 341,328.37

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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.