Home / 445,852.20-615,276-254,869.86

Finding the Fourth Proportional to 445,852.20, 615,276 and 254,869.86

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Solution

The fourth proportional to 445,852.20, 615,276 and 254,869.86 is: 351,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,852.20 : 615,276 = 254,869.86 : x
  2. Step 2: Convert to fraction form
    445,852.20/615,276 = 254,869.86/x
  3. Step 3: Cross multiply
    445,852.20x = 615,276 × 254,869.86
  4. Step 4: Simplify right side
    445,852.20x = 156,815,307,981.36
  5. Step 5: Solve for x
    x = 156,815,307,981.36/445,852.20
  6. Step 6: Final answer
    x = 351,720.39

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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.