Home / 328,386.25-492,653.19-103,760.16

Finding the Fourth Proportional to 328,386.25, 492,653.19 and 103,760.16

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Solution

The fourth proportional to 328,386.25, 492,653.19 and 103,760.16 is: 155,663.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,386.25 : 492,653.19 = 103,760.16 : x
  2. Step 2: Convert to fraction form
    328,386.25/492,653.19 = 103,760.16/x
  3. Step 3: Cross multiply
    328,386.25x = 492,653.19 × 103,760.16
  4. Step 4: Simplify right side
    328,386.25x = 51,117,775,933.67
  5. Step 5: Solve for x
    x = 51,117,775,933.67/328,386.25
  6. Step 6: Final answer
    x = 155,663.57

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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.