Home / 328,556.64-492,895.71-103,973.61

Finding the Fourth Proportional to 328,556.64, 492,895.71 and 103,973.61

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Solution

The fourth proportional to 328,556.64, 492,895.71 and 103,973.61 is: 155,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,556.64 : 492,895.71 = 103,973.61 : x
  2. Step 2: Convert to fraction form
    328,556.64/492,895.71 = 103,973.61/x
  3. Step 3: Cross multiply
    328,556.64x = 492,895.71 × 103,973.61
  4. Step 4: Simplify right side
    328,556.64x = 51,248,146,322.21
  5. Step 5: Solve for x
    x = 51,248,146,322.21/328,556.64
  6. Step 6: Final answer
    x = 155,979.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.