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Finding the Fourth Proportional to 445,770.36, 615,205.53 and 254,746.71

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Solution

The fourth proportional to 445,770.36, 615,205.53 and 254,746.71 is: 351,574.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,770.36 : 615,205.53 = 254,746.71 : x
  2. Step 2: Convert to fraction form
    445,770.36/615,205.53 = 254,746.71/x
  3. Step 3: Cross multiply
    445,770.36x = 615,205.53 × 254,746.71
  4. Step 4: Simplify right side
    445,770.36x = 156,721,584,741.31
  5. Step 5: Solve for x
    x = 156,721,584,741.31/445,770.36
  6. Step 6: Final answer
    x = 351,574.71

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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.