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Finding the Fourth Proportional to 258,464.40, 356,628.48 and 151,013.64

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Solution

The fourth proportional to 258,464.40, 356,628.48 and 151,013.64 is: 208,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,464.40 : 356,628.48 = 151,013.64 : x
  2. Step 2: Convert to fraction form
    258,464.40/356,628.48 = 151,013.64/x
  3. Step 3: Cross multiply
    258,464.40x = 356,628.48 × 151,013.64
  4. Step 4: Simplify right side
    258,464.40x = 53,855,764,892.47
  5. Step 5: Solve for x
    x = 53,855,764,892.47/258,464.40
  6. Step 6: Final answer
    x = 208,368.21

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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.