Home / 245,256.84-338,546.93-143,315.45

Finding the Fourth Proportional to 245,256.84, 338,546.93 and 143,315.45

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Solution

The fourth proportional to 245,256.84, 338,546.93 and 143,315.45 is: 197,829.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,256.84 : 338,546.93 = 143,315.45 : x
  2. Step 2: Convert to fraction form
    245,256.84/338,546.93 = 143,315.45/x
  3. Step 3: Cross multiply
    245,256.84x = 338,546.93 × 143,315.45
  4. Step 4: Simplify right side
    245,256.84x = 48,519,006,823.72
  5. Step 5: Solve for x
    x = 48,519,006,823.72/245,256.84
  6. Step 6: Final answer
    x = 197,829.37

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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.