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Finding the Fourth Proportional to 286,662.65, 395,599.14 and 157,606.56

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Solution

The fourth proportional to 286,662.65, 395,599.14 and 157,606.56 is: 217,499.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,662.65 : 395,599.14 = 157,606.56 : x
  2. Step 2: Convert to fraction form
    286,662.65/395,599.14 = 157,606.56/x
  3. Step 3: Cross multiply
    286,662.65x = 395,599.14 × 157,606.56
  4. Step 4: Simplify right side
    286,662.65x = 62,349,019,594.36
  5. Step 5: Solve for x
    x = 62,349,019,594.36/286,662.65
  6. Step 6: Final answer
    x = 217,499.63

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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.