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Finding the Fourth Proportional to 289,545.75, 434,493.60 and 123,333.75

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Solution

The fourth proportional to 289,545.75, 434,493.60 and 123,333.75 is: 185,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,545.75 : 434,493.60 = 123,333.75 : x
  2. Step 2: Convert to fraction form
    289,545.75/434,493.60 = 123,333.75/x
  3. Step 3: Cross multiply
    289,545.75x = 434,493.60 × 123,333.75
  4. Step 4: Simplify right side
    289,545.75x = 53,587,725,039
  5. Step 5: Solve for x
    x = 53,587,725,039/289,545.75
  6. Step 6: Final answer
    x = 185,075.16

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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.