Home / 313,981.24-470,988.16-103,635.60

Finding the Fourth Proportional to 313,981.24, 470,988.16 and 103,635.60

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Solution

The fourth proportional to 313,981.24, 470,988.16 and 103,635.60 is: 155,458.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,981.24 : 470,988.16 = 103,635.60 : x
  2. Step 2: Convert to fraction form
    313,981.24/470,988.16 = 103,635.60/x
  3. Step 3: Cross multiply
    313,981.24x = 470,988.16 × 103,635.60
  4. Step 4: Simplify right side
    313,981.24x = 48,811,140,554.50
  5. Step 5: Solve for x
    x = 48,811,140,554.50/313,981.24
  6. Step 6: Final answer
    x = 155,458.78

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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.