Home / 217,075.20-325,612.80-154,089.60

Finding the Fourth Proportional to 217,075.20, 325,612.80 and 154,089.60

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Solution

The fourth proportional to 217,075.20, 325,612.80 and 154,089.60 is: 231,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,075.20 : 325,612.80 = 154,089.60 : x
  2. Step 2: Convert to fraction form
    217,075.20/325,612.80 = 154,089.60/x
  3. Step 3: Cross multiply
    217,075.20x = 325,612.80 × 154,089.60
  4. Step 4: Simplify right side
    217,075.20x = 50,173,546,106.88
  5. Step 5: Solve for x
    x = 50,173,546,106.88/217,075.20
  6. Step 6: Final answer
    x = 231,134.40

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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.