Home / 638,829.72-958,170.06-165,478.68

Finding the Fourth Proportional to 638,829.72, 958,170.06 and 165,478.68

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Solution

The fourth proportional to 638,829.72, 958,170.06 and 165,478.68 is: 248,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,829.72 : 958,170.06 = 165,478.68 : x
  2. Step 2: Convert to fraction form
    638,829.72/958,170.06 = 165,478.68/x
  3. Step 3: Cross multiply
    638,829.72x = 958,170.06 × 165,478.68
  4. Step 4: Simplify right side
    638,829.72x = 158,556,716,744.32
  5. Step 5: Solve for x
    x = 158,556,716,744.32/638,829.72
  6. Step 6: Final answer
    x = 248,198.72

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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.