Home / 445,823.16-615,236-254,840.72

Finding the Fourth Proportional to 445,823.16, 615,236 and 254,840.72

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Solution

The fourth proportional to 445,823.16, 615,236 and 254,840.72 is: 351,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,823.16 : 615,236 = 254,840.72 : x
  2. Step 2: Convert to fraction form
    445,823.16/615,236 = 254,840.72/x
  3. Step 3: Cross multiply
    445,823.16x = 615,236 × 254,840.72
  4. Step 4: Simplify right side
    445,823.16x = 156,787,185,209.92
  5. Step 5: Solve for x
    x = 156,787,185,209.92/445,823.16
  6. Step 6: Final answer
    x = 351,680.22

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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.