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Finding the Fourth Proportional to 342,950.85, 473,436.27 and 228,420.09

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Solution

The fourth proportional to 342,950.85, 473,436.27 and 228,420.09 is: 315,329.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,950.85 : 473,436.27 = 228,420.09 : x
  2. Step 2: Convert to fraction form
    342,950.85/473,436.27 = 228,420.09/x
  3. Step 3: Cross multiply
    342,950.85x = 473,436.27 × 228,420.09
  4. Step 4: Simplify right side
    342,950.85x = 108,142,355,402.66
  5. Step 5: Solve for x
    x = 108,142,355,402.66/342,950.85
  6. Step 6: Final answer
    x = 315,329.02

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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.