Home / 218,077.02-300,947.95-121,282.23

Finding the Fourth Proportional to 218,077.02, 300,947.95 and 121,282.23

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Solution

The fourth proportional to 218,077.02, 300,947.95 and 121,282.23 is: 167,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,077.02 : 300,947.95 = 121,282.23 : x
  2. Step 2: Convert to fraction form
    218,077.02/300,947.95 = 121,282.23/x
  3. Step 3: Cross multiply
    218,077.02x = 300,947.95 × 121,282.23
  4. Step 4: Simplify right side
    218,077.02x = 36,499,638,489.93
  5. Step 5: Solve for x
    x = 36,499,638,489.93/218,077.02
  6. Step 6: Final answer
    x = 167,370.40

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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.