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Finding the Fourth Proportional to 248,193.70, 372,290.55 and 206,859.40

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Solution

The fourth proportional to 248,193.70, 372,290.55 and 206,859.40 is: 310,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,193.70 : 372,290.55 = 206,859.40 : x
  2. Step 2: Convert to fraction form
    248,193.70/372,290.55 = 206,859.40/x
  3. Step 3: Cross multiply
    248,193.70x = 372,290.55 × 206,859.40
  4. Step 4: Simplify right side
    248,193.70x = 77,011,799,798.67
  5. Step 5: Solve for x
    x = 77,011,799,798.67/248,193.70
  6. Step 6: Final answer
    x = 310,289.10

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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.