Home / 313,998.45-471,071.18-103,636.18

Finding the Fourth Proportional to 313,998.45, 471,071.18 and 103,636.18

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Solution

The fourth proportional to 313,998.45, 471,071.18 and 103,636.18 is: 155,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,998.45 : 471,071.18 = 103,636.18 : x
  2. Step 2: Convert to fraction form
    313,998.45/471,071.18 = 103,636.18/x
  3. Step 3: Cross multiply
    313,998.45x = 471,071.18 × 103,636.18
  4. Step 4: Simplify right side
    313,998.45x = 48,820,017,603.29
  5. Step 5: Solve for x
    x = 48,820,017,603.29/313,998.45
  6. Step 6: Final answer
    x = 155,478.53

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1.5x scale

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.