Home / 313,979.28-470,985.16-103,633.60

Finding the Fourth Proportional to 313,979.28, 470,985.16 and 103,633.60

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Solution

The fourth proportional to 313,979.28, 470,985.16 and 103,633.60 is: 155,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,979.28 : 470,985.16 = 103,633.60 : x
  2. Step 2: Convert to fraction form
    313,979.28/470,985.16 = 103,633.60/x
  3. Step 3: Cross multiply
    313,979.28x = 470,985.16 × 103,633.60
  4. Step 4: Simplify right side
    313,979.28x = 48,809,887,677.38
  5. Step 5: Solve for x
    x = 48,809,887,677.38/313,979.28
  6. Step 6: Final answer
    x = 155,455.76

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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.