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Finding the Fourth Proportional to 286,703.56, 427,636.37 and 248,966.92

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Solution

The fourth proportional to 286,703.56, 427,636.37 and 248,966.92 is: 371,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,703.56 : 427,636.37 = 248,966.92 : x
  2. Step 2: Convert to fraction form
    286,703.56/427,636.37 = 248,966.92/x
  3. Step 3: Cross multiply
    286,703.56x = 427,636.37 × 248,966.92
  4. Step 4: Simplify right side
    286,703.56x = 106,467,309,918.88
  5. Step 5: Solve for x
    x = 106,467,309,918.88/286,703.56
  6. Step 6: Final answer
    x = 371,349.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.