Home / 313,985.24-470,994.16-103,639.60

Finding the Fourth Proportional to 313,985.24, 470,994.16 and 103,639.60

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Solution

The fourth proportional to 313,985.24, 470,994.16 and 103,639.60 is: 155,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,985.24 : 470,994.16 = 103,639.60 : x
  2. Step 2: Convert to fraction form
    313,985.24/470,994.16 = 103,639.60/x
  3. Step 3: Cross multiply
    313,985.24x = 470,994.16 × 103,639.60
  4. Step 4: Simplify right side
    313,985.24x = 48,813,646,344.74
  5. Step 5: Solve for x
    x = 48,813,646,344.74/313,985.24
  6. Step 6: Final answer
    x = 155,464.78

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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.