Home / 300,140.56-450,210.60-120,307.24

Finding the Fourth Proportional to 300,140.56, 450,210.60 and 120,307.24

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Solution

The fourth proportional to 300,140.56, 450,210.60 and 120,307.24 is: 180,460.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,140.56 : 450,210.60 = 120,307.24 : x
  2. Step 2: Convert to fraction form
    300,140.56/450,210.60 = 120,307.24/x
  3. Step 3: Cross multiply
    300,140.56x = 450,210.60 × 120,307.24
  4. Step 4: Simplify right side
    300,140.56x = 54,163,594,704.74
  5. Step 5: Solve for x
    x = 54,163,594,704.74/300,140.56
  6. Step 6: Final answer
    x = 180,460.76

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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.