Home / 283,065.22-390,639.35-162,229.67

Finding the Fourth Proportional to 283,065.22, 390,639.35 and 162,229.67

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Solution

The fourth proportional to 283,065.22, 390,639.35 and 162,229.67 is: 223,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,065.22 : 390,639.35 = 162,229.67 : x
  2. Step 2: Convert to fraction form
    283,065.22/390,639.35 = 162,229.67/x
  3. Step 3: Cross multiply
    283,065.22x = 390,639.35 × 162,229.67
  4. Step 4: Simplify right side
    283,065.22x = 63,373,292,839.51
  5. Step 5: Solve for x
    x = 63,373,292,839.51/283,065.22
  6. Step 6: Final answer
    x = 223,882.30

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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.