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Finding the Fourth Proportional to 528,075.30, 792,112.95 and 154,049.70

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Solution

The fourth proportional to 528,075.30, 792,112.95 and 154,049.70 is: 231,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,075.30 : 792,112.95 = 154,049.70 : x
  2. Step 2: Convert to fraction form
    528,075.30/792,112.95 = 154,049.70/x
  3. Step 3: Cross multiply
    528,075.30x = 792,112.95 × 154,049.70
  4. Step 4: Simplify right side
    528,075.30x = 122,024,762,313.62
  5. Step 5: Solve for x
    x = 122,024,762,313.62/528,075.30
  6. Step 6: Final answer
    x = 231,074.55

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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.