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Finding the Fourth Proportional to 342,643.60, 513,997.80 and 93,325.60

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Solution

The fourth proportional to 342,643.60, 513,997.80 and 93,325.60 is: 139,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,643.60 : 513,997.80 = 93,325.60 : x
  2. Step 2: Convert to fraction form
    342,643.60/513,997.80 = 93,325.60/x
  3. Step 3: Cross multiply
    342,643.60x = 513,997.80 × 93,325.60
  4. Step 4: Simplify right side
    342,643.60x = 47,969,153,083.68
  5. Step 5: Solve for x
    x = 47,969,153,083.68/342,643.60
  6. Step 6: Final answer
    x = 139,997.22

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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.