Home / 262,208.10-393,312.15-84,720.90

Finding the Fourth Proportional to 262,208.10, 393,312.15 and 84,720.90

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Solution

The fourth proportional to 262,208.10, 393,312.15 and 84,720.90 is: 127,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,208.10 : 393,312.15 = 84,720.90 : x
  2. Step 2: Convert to fraction form
    262,208.10/393,312.15 = 84,720.90/x
  3. Step 3: Cross multiply
    262,208.10x = 393,312.15 × 84,720.90
  4. Step 4: Simplify right side
    262,208.10x = 33,321,759,328.94
  5. Step 5: Solve for x
    x = 33,321,759,328.94/262,208.10
  6. Step 6: Final answer
    x = 127,081.35

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Similar ratio
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1.5x scale

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.