Home / 313,987.20-470,914.88-103,575.84

Finding the Fourth Proportional to 313,987.20, 470,914.88 and 103,575.84

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Solution

The fourth proportional to 313,987.20, 470,914.88 and 103,575.84 is: 155,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,987.20 : 470,914.88 = 103,575.84 : x
  2. Step 2: Convert to fraction form
    313,987.20/470,914.88 = 103,575.84/x
  3. Step 3: Cross multiply
    313,987.20x = 470,914.88 × 103,575.84
  4. Step 4: Simplify right side
    313,987.20x = 48,775,403,746.62
  5. Step 5: Solve for x
    x = 48,775,403,746.62/313,987.20
  6. Step 6: Final answer
    x = 155,342.01

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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.