Home / 380,451.05-525,009.48-217,116.57

Finding the Fourth Proportional to 380,451.05, 525,009.48 and 217,116.57

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Solution

The fourth proportional to 380,451.05, 525,009.48 and 217,116.57 is: 299,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,451.05 : 525,009.48 = 217,116.57 : x
  2. Step 2: Convert to fraction form
    380,451.05/525,009.48 = 217,116.57/x
  3. Step 3: Cross multiply
    380,451.05x = 525,009.48 × 217,116.57
  4. Step 4: Simplify right side
    380,451.05x = 113,988,257,515.08
  5. Step 5: Solve for x
    x = 113,988,257,515.08/380,451.05
  6. Step 6: Final answer
    x = 299,613.47

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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.