Home / 227,811.40-342,008.70-121,280.20

Finding the Fourth Proportional to 227,811.40, 342,008.70 and 121,280.20

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Solution

The fourth proportional to 227,811.40, 342,008.70 and 121,280.20 is: 182,075.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,811.40 : 342,008.70 = 121,280.20 : x
  2. Step 2: Convert to fraction form
    227,811.40/342,008.70 = 121,280.20/x
  3. Step 3: Cross multiply
    227,811.40x = 342,008.70 × 121,280.20
  4. Step 4: Simplify right side
    227,811.40x = 41,478,883,537.74
  5. Step 5: Solve for x
    x = 41,478,883,537.74/227,811.40
  6. Step 6: Final answer
    x = 182,075.54

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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.