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Finding the Fourth Proportional to 343,441.69, 473,942.47 and 190,455.21

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Solution

The fourth proportional to 343,441.69, 473,942.47 and 190,455.21 is: 262,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,441.69 : 473,942.47 = 190,455.21 : x
  2. Step 2: Convert to fraction form
    343,441.69/473,942.47 = 190,455.21/x
  3. Step 3: Cross multiply
    343,441.69x = 473,942.47 × 190,455.21
  4. Step 4: Simplify right side
    343,441.69x = 90,264,812,651.77
  5. Step 5: Solve for x
    x = 90,264,812,651.77/343,441.69
  6. Step 6: Final answer
    x = 262,824.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.