Home / 261,420.36-392,083.38-69,296.01

Finding the Fourth Proportional to 261,420.36, 392,083.38 and 69,296.01

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Solution

The fourth proportional to 261,420.36, 392,083.38 and 69,296.01 is: 103,931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,420.36 : 392,083.38 = 69,296.01 : x
  2. Step 2: Convert to fraction form
    261,420.36/392,083.38 = 69,296.01/x
  3. Step 3: Cross multiply
    261,420.36x = 392,083.38 × 69,296.01
  4. Step 4: Simplify right side
    261,420.36x = 27,169,813,821.31
  5. Step 5: Solve for x
    x = 27,169,813,821.31/261,420.36
  6. Step 6: Final answer
    x = 103,931.51

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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.