Home / 445,811.76-615,220.16-254,829.24

Finding the Fourth Proportional to 445,811.76, 615,220.16 and 254,829.24

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Solution

The fourth proportional to 445,811.76, 615,220.16 and 254,829.24 is: 351,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,811.76 : 615,220.16 = 254,829.24 : x
  2. Step 2: Convert to fraction form
    445,811.76/615,220.16 = 254,829.24/x
  3. Step 3: Cross multiply
    445,811.76x = 615,220.16 × 254,829.24
  4. Step 4: Simplify right side
    445,811.76x = 156,776,085,805.48
  5. Step 5: Solve for x
    x = 156,776,085,805.48/445,811.76
  6. Step 6: Final answer
    x = 351,664.31

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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.