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Finding the Fourth Proportional to 342,237.31, 513,404.21 and 105,599.23

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Solution

The fourth proportional to 342,237.31, 513,404.21 and 105,599.23 is: 158,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,237.31 : 513,404.21 = 105,599.23 : x
  2. Step 2: Convert to fraction form
    342,237.31/513,404.21 = 105,599.23/x
  3. Step 3: Cross multiply
    342,237.31x = 513,404.21 × 105,599.23
  4. Step 4: Simplify right side
    342,237.31x = 54,215,089,254.76
  5. Step 5: Solve for x
    x = 54,215,089,254.76/342,237.31
  6. Step 6: Final answer
    x = 158,413.73

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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.