Home / 218,024.12-300,820.74-127,328.60

Finding the Fourth Proportional to 218,024.12, 300,820.74 and 127,328.60

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Solution

The fourth proportional to 218,024.12, 300,820.74 and 127,328.60 is: 175,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,024.12 : 300,820.74 = 127,328.60 : x
  2. Step 2: Convert to fraction form
    218,024.12/300,820.74 = 127,328.60/x
  3. Step 3: Cross multiply
    218,024.12x = 300,820.74 × 127,328.60
  4. Step 4: Simplify right side
    218,024.12x = 38,303,083,675.16
  5. Step 5: Solve for x
    x = 38,303,083,675.16/218,024.12
  6. Step 6: Final answer
    x = 175,682.78

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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.