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Finding the Fourth Proportional to 258,800.34, 388,495.89 and 173,474.67

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Solution

The fourth proportional to 258,800.34, 388,495.89 and 173,474.67 is: 260,410.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,800.34 : 388,495.89 = 173,474.67 : x
  2. Step 2: Convert to fraction form
    258,800.34/388,495.89 = 173,474.67/x
  3. Step 3: Cross multiply
    258,800.34x = 388,495.89 × 173,474.67
  4. Step 4: Simplify right side
    258,800.34x = 67,394,196,314.11
  5. Step 5: Solve for x
    x = 67,394,196,314.11/258,800.34
  6. Step 6: Final answer
    x = 260,410.00

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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.