Home / 380,955.21-571,518.93-191,506.35

Finding the Fourth Proportional to 380,955.21, 571,518.93 and 191,506.35

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Solution

The fourth proportional to 380,955.21, 571,518.93 and 191,506.35 is: 287,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,955.21 : 571,518.93 = 191,506.35 : x
  2. Step 2: Convert to fraction form
    380,955.21/571,518.93 = 191,506.35/x
  3. Step 3: Cross multiply
    380,955.21x = 571,518.93 × 191,506.35
  4. Step 4: Simplify right side
    380,955.21x = 109,449,504,240.21
  5. Step 5: Solve for x
    x = 109,449,504,240.21/380,955.21
  6. Step 6: Final answer
    x = 287,302.82

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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.