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Finding the Fourth Proportional to 434,462.40, 651,693.60 and 134,940.60

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Solution

The fourth proportional to 434,462.40, 651,693.60 and 134,940.60 is: 202,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,462.40 : 651,693.60 = 134,940.60 : x
  2. Step 2: Convert to fraction form
    434,462.40/651,693.60 = 134,940.60/x
  3. Step 3: Cross multiply
    434,462.40x = 651,693.60 × 134,940.60
  4. Step 4: Simplify right side
    434,462.40x = 87,939,925,400.16
  5. Step 5: Solve for x
    x = 87,939,925,400.16/434,462.40
  6. Step 6: Final answer
    x = 202,410.90

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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.