Home / 353,462.64-487,617.72-210,141.36

Finding the Fourth Proportional to 353,462.64, 487,617.72 and 210,141.36

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Solution

The fourth proportional to 353,462.64, 487,617.72 and 210,141.36 is: 289,899.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,462.64 : 487,617.72 = 210,141.36 : x
  2. Step 2: Convert to fraction form
    353,462.64/487,617.72 = 210,141.36/x
  3. Step 3: Cross multiply
    353,462.64x = 487,617.72 × 210,141.36
  4. Step 4: Simplify right side
    353,462.64x = 102,468,650,840.90
  5. Step 5: Solve for x
    x = 102,468,650,840.90/353,462.64
  6. Step 6: Final answer
    x = 289,899.52

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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.