Home / 313,845.90-470,867.22-103,631.46

Finding the Fourth Proportional to 313,845.90, 470,867.22 and 103,631.46

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Solution

The fourth proportional to 313,845.90, 470,867.22 and 103,631.46 is: 155,479.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,845.90 : 470,867.22 = 103,631.46 : x
  2. Step 2: Convert to fraction form
    313,845.90/470,867.22 = 103,631.46/x
  3. Step 3: Cross multiply
    313,845.90x = 470,867.22 × 103,631.46
  4. Step 4: Simplify right side
    313,845.90x = 48,796,657,474.74
  5. Step 5: Solve for x
    x = 48,796,657,474.74/313,845.90
  6. Step 6: Final answer
    x = 155,479.67

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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.