Home / 313,632.36-432,781.44-177,639.24

Finding the Fourth Proportional to 313,632.36, 432,781.44 and 177,639.24

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Solution

The fourth proportional to 313,632.36, 432,781.44 and 177,639.24 is: 245,124.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,632.36 : 432,781.44 = 177,639.24 : x
  2. Step 2: Convert to fraction form
    313,632.36/432,781.44 = 177,639.24/x
  3. Step 3: Cross multiply
    313,632.36x = 432,781.44 × 177,639.24
  4. Step 4: Simplify right side
    313,632.36x = 76,878,966,087.71
  5. Step 5: Solve for x
    x = 76,878,966,087.71/313,632.36
  6. Step 6: Final answer
    x = 245,124.47

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1.5x scale

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.