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Finding the Fourth Proportional to 258,602.80, 356,867.56 and 143,880.24

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Solution

The fourth proportional to 258,602.80, 356,867.56 and 143,880.24 is: 198,552.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,602.80 : 356,867.56 = 143,880.24 : x
  2. Step 2: Convert to fraction form
    258,602.80/356,867.56 = 143,880.24/x
  3. Step 3: Cross multiply
    258,602.80x = 356,867.56 × 143,880.24
  4. Step 4: Simplify right side
    258,602.80x = 51,346,190,181.01
  5. Step 5: Solve for x
    x = 51,346,190,181.01/258,602.80
  6. Step 6: Final answer
    x = 198,552.34

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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.