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Finding the Fourth Proportional to 415,388.68, 573,427.74 and 243,282.76

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Solution

The fourth proportional to 415,388.68, 573,427.74 and 243,282.76 is: 335,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,388.68 : 573,427.74 = 243,282.76 : x
  2. Step 2: Convert to fraction form
    415,388.68/573,427.74 = 243,282.76/x
  3. Step 3: Cross multiply
    415,388.68x = 573,427.74 × 243,282.76
  4. Step 4: Simplify right side
    415,388.68x = 139,505,083,247.76
  5. Step 5: Solve for x
    x = 139,505,083,247.76/415,388.68
  6. Step 6: Final answer
    x = 335,842.28

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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.