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Finding the Fourth Proportional to 357,491.78, 538,170.35 and 325,675.32

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Solution

The fourth proportional to 357,491.78, 538,170.35 and 325,675.32 is: 490,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,491.78 : 538,170.35 = 325,675.32 : x
  2. Step 2: Convert to fraction form
    357,491.78/538,170.35 = 325,675.32/x
  3. Step 3: Cross multiply
    357,491.78x = 538,170.35 × 325,675.32
  4. Step 4: Simplify right side
    357,491.78x = 175,268,799,322.39
  5. Step 5: Solve for x
    x = 175,268,799,322.39/357,491.78
  6. Step 6: Final answer
    x = 490,273.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.