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Finding the Fourth Proportional to 408,072.30, 612,108.45 and 158,592.30

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Solution

The fourth proportional to 408,072.30, 612,108.45 and 158,592.30 is: 237,888.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,072.30 : 612,108.45 = 158,592.30 : x
  2. Step 2: Convert to fraction form
    408,072.30/612,108.45 = 158,592.30/x
  3. Step 3: Cross multiply
    408,072.30x = 612,108.45 × 158,592.30
  4. Step 4: Simplify right side
    408,072.30x = 97,075,686,934.94
  5. Step 5: Solve for x
    x = 97,075,686,934.94/408,072.30
  6. Step 6: Final answer
    x = 237,888.45

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Similar ratio
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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.