Home / 258,200.04-356,216.76-190,378.20

Finding the Fourth Proportional to 258,200.04, 356,216.76 and 190,378.20

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Solution

The fourth proportional to 258,200.04, 356,216.76 and 190,378.20 is: 262,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,200.04 : 356,216.76 = 190,378.20 : x
  2. Step 2: Convert to fraction form
    258,200.04/356,216.76 = 190,378.20/x
  3. Step 3: Cross multiply
    258,200.04x = 356,216.76 × 190,378.20
  4. Step 4: Simplify right side
    258,200.04x = 67,815,905,578.63
  5. Step 5: Solve for x
    x = 67,815,905,578.63/258,200.04
  6. Step 6: Final answer
    x = 262,648.70

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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.