Home / 371,331.06-512,448.33-218,341.62

Finding the Fourth Proportional to 371,331.06, 512,448.33 and 218,341.62

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Solution

The fourth proportional to 371,331.06, 512,448.33 and 218,341.62 is: 301,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,331.06 : 512,448.33 = 218,341.62 : x
  2. Step 2: Convert to fraction form
    371,331.06/512,448.33 = 218,341.62/x
  3. Step 3: Cross multiply
    371,331.06x = 512,448.33 × 218,341.62
  4. Step 4: Simplify right side
    371,331.06x = 111,888,798,538.50
  5. Step 5: Solve for x
    x = 111,888,798,538.50/371,331.06
  6. Step 6: Final answer
    x = 301,318.18

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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.