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Finding the Fourth Proportional to 385,024, 577,769.28 and 163,408

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Solution

The fourth proportional to 385,024, 577,769.28 and 163,408 is: 245,211.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,024 : 577,769.28 = 163,408 : x
  2. Step 2: Convert to fraction form
    385,024/577,769.28 = 163,408/x
  3. Step 3: Cross multiply
    385,024x = 577,769.28 × 163,408
  4. Step 4: Simplify right side
    385,024x = 94,412,122,506.24
  5. Step 5: Solve for x
    x = 94,412,122,506.24/385,024
  6. Step 6: Final answer
    x = 245,211.01

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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.