Home / 253,146.27-379,719.75-103,386.57

Finding the Fourth Proportional to 253,146.27, 379,719.75 and 103,386.57

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Solution

The fourth proportional to 253,146.27, 379,719.75 and 103,386.57 is: 155,080.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,146.27 : 379,719.75 = 103,386.57 : x
  2. Step 2: Convert to fraction form
    253,146.27/379,719.75 = 103,386.57/x
  3. Step 3: Cross multiply
    253,146.27x = 379,719.75 × 103,386.57
  4. Step 4: Simplify right side
    253,146.27x = 39,257,922,513.76
  5. Step 5: Solve for x
    x = 39,257,922,513.76/253,146.27
  6. Step 6: Final answer
    x = 155,080.00

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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.