Home / 407,091.81-610,639.28-170,268.36

Finding the Fourth Proportional to 407,091.81, 610,639.28 and 170,268.36

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Solution

The fourth proportional to 407,091.81, 610,639.28 and 170,268.36 is: 255,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,091.81 : 610,639.28 = 170,268.36 : x
  2. Step 2: Convert to fraction form
    407,091.81/610,639.28 = 170,268.36/x
  3. Step 3: Cross multiply
    407,091.81x = 610,639.28 × 170,268.36
  4. Step 4: Simplify right side
    407,091.81x = 103,972,547,905.84
  5. Step 5: Solve for x
    x = 103,972,547,905.84/407,091.81
  6. Step 6: Final answer
    x = 255,403.19

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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.