Home / 315,268.38-435,066.74-172,030.81

Finding the Fourth Proportional to 315,268.38, 435,066.74 and 172,030.81

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Solution

The fourth proportional to 315,268.38, 435,066.74 and 172,030.81 is: 237,400.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,268.38 : 435,066.74 = 172,030.81 : x
  2. Step 2: Convert to fraction form
    315,268.38/435,066.74 = 172,030.81/x
  3. Step 3: Cross multiply
    315,268.38x = 435,066.74 × 172,030.81
  4. Step 4: Simplify right side
    315,268.38x = 74,844,883,686.26
  5. Step 5: Solve for x
    x = 74,844,883,686.26/315,268.38
  6. Step 6: Final answer
    x = 237,400.54

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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.