Home / 445,811.25-615,219.47-254,828.75

Finding the Fourth Proportional to 445,811.25, 615,219.47 and 254,828.75

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Solution

The fourth proportional to 445,811.25, 615,219.47 and 254,828.75 is: 351,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,811.25 : 615,219.47 = 254,828.75 : x
  2. Step 2: Convert to fraction form
    445,811.25/615,219.47 = 254,828.75/x
  3. Step 3: Cross multiply
    445,811.25x = 615,219.47 × 254,828.75
  4. Step 4: Simplify right side
    445,811.25x = 156,775,604,165.52
  5. Step 5: Solve for x
    x = 156,775,604,165.52/445,811.25
  6. Step 6: Final answer
    x = 351,663.63

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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.