Home / 259,345.24-388,316.40-134,423.80

Finding the Fourth Proportional to 259,345.24, 388,316.40 and 134,423.80

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Solution

The fourth proportional to 259,345.24, 388,316.40 and 134,423.80 is: 201,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,345.24 : 388,316.40 = 134,423.80 : x
  2. Step 2: Convert to fraction form
    259,345.24/388,316.40 = 134,423.80/x
  3. Step 3: Cross multiply
    259,345.24x = 388,316.40 × 134,423.80
  4. Step 4: Simplify right side
    259,345.24x = 52,198,966,090.32
  5. Step 5: Solve for x
    x = 52,198,966,090.32/259,345.24
  6. Step 6: Final answer
    x = 201,272.12

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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.