Home / 328,724.24-492,896.18-128,810.58

Finding the Fourth Proportional to 328,724.24, 492,896.18 and 128,810.58

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Solution

The fourth proportional to 328,724.24, 492,896.18 and 128,810.58 is: 193,141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,724.24 : 492,896.18 = 128,810.58 : x
  2. Step 2: Convert to fraction form
    328,724.24/492,896.18 = 128,810.58/x
  3. Step 3: Cross multiply
    328,724.24x = 492,896.18 × 128,810.58
  4. Step 4: Simplify right side
    328,724.24x = 63,490,242,825.58
  5. Step 5: Solve for x
    x = 63,490,242,825.58/328,724.24
  6. Step 6: Final answer
    x = 193,141.35

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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.