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Finding the Fourth Proportional to 395,173.94, 545,353.26 and 242,182.57

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Solution

The fourth proportional to 395,173.94, 545,353.26 and 242,182.57 is: 334,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,173.94 : 545,353.26 = 242,182.57 : x
  2. Step 2: Convert to fraction form
    395,173.94/545,353.26 = 242,182.57/x
  3. Step 3: Cross multiply
    395,173.94x = 545,353.26 × 242,182.57
  4. Step 4: Simplify right side
    395,173.94x = 132,075,054,064.68
  5. Step 5: Solve for x
    x = 132,075,054,064.68/395,173.94
  6. Step 6: Final answer
    x = 334,220.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.