Home / 259,270.34-388,649.75-124,178.40

Finding the Fourth Proportional to 259,270.34, 388,649.75 and 124,178.40

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Solution

The fourth proportional to 259,270.34, 388,649.75 and 124,178.40 is: 186,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,270.34 : 388,649.75 = 124,178.40 : x
  2. Step 2: Convert to fraction form
    259,270.34/388,649.75 = 124,178.40/x
  3. Step 3: Cross multiply
    259,270.34x = 388,649.75 × 124,178.40
  4. Step 4: Simplify right side
    259,270.34x = 48,261,903,494.51
  5. Step 5: Solve for x
    x = 48,261,903,494.51/259,270.34
  6. Step 6: Final answer
    x = 186,145.10

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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.