Home / 260,065.18-358,887.14-143,778.16

Finding the Fourth Proportional to 260,065.18, 358,887.14 and 143,778.16

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Solution

The fourth proportional to 260,065.18, 358,887.14 and 143,778.16 is: 198,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,065.18 : 358,887.14 = 143,778.16 : x
  2. Step 2: Convert to fraction form
    260,065.18/358,887.14 = 143,778.16/x
  3. Step 3: Cross multiply
    260,065.18x = 358,887.14 × 143,778.16
  4. Step 4: Simplify right side
    260,065.18x = 51,600,131,695.76
  5. Step 5: Solve for x
    x = 51,600,131,695.76/260,065.18
  6. Step 6: Final answer
    x = 198,412.30

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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.