Home / 315,273.10-435,087.38-172,041.01

Finding the Fourth Proportional to 315,273.10, 435,087.38 and 172,041.01

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Solution

The fourth proportional to 315,273.10, 435,087.38 and 172,041.01 is: 237,422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,273.10 : 435,087.38 = 172,041.01 : x
  2. Step 2: Convert to fraction form
    315,273.10/435,087.38 = 172,041.01/x
  3. Step 3: Cross multiply
    315,273.10x = 435,087.38 × 172,041.01
  4. Step 4: Simplify right side
    315,273.10x = 74,852,872,293.45
  5. Step 5: Solve for x
    x = 74,852,872,293.45/315,273.10
  6. Step 6: Final answer
    x = 237,422.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.