Home / 313,966.80-470,948.04-103,621.68

Finding the Fourth Proportional to 313,966.80, 470,948.04 and 103,621.68

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Solution

The fourth proportional to 313,966.80, 470,948.04 and 103,621.68 is: 155,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,966.80 : 470,948.04 = 103,621.68 : x
  2. Step 2: Convert to fraction form
    313,966.80/470,948.04 = 103,621.68/x
  3. Step 3: Cross multiply
    313,966.80x = 470,948.04 × 103,621.68
  4. Step 4: Simplify right side
    313,966.80x = 48,800,427,097.51
  5. Step 5: Solve for x
    x = 48,800,427,097.51/313,966.80
  6. Step 6: Final answer
    x = 155,431.81

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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.