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Finding the Fourth Proportional to 395,173.84, 545,353.12 and 242,182.48

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Solution

The fourth proportional to 395,173.84, 545,353.12 and 242,182.48 is: 334,219.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,173.84 : 545,353.12 = 242,182.48 : x
  2. Step 2: Convert to fraction form
    395,173.84/545,353.12 = 242,182.48/x
  3. Step 3: Cross multiply
    395,173.84x = 545,353.12 × 242,182.48
  4. Step 4: Simplify right side
    395,173.84x = 132,074,971,077.34
  5. Step 5: Solve for x
    x = 132,074,971,077.34/395,173.84
  6. Step 6: Final answer
    x = 334,219.92

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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.