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Finding the Fourth Proportional to 299,079.09, 412,712.93 and 169,999.65

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Solution

The fourth proportional to 299,079.09, 412,712.93 and 169,999.65 is: 234,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,079.09 : 412,712.93 = 169,999.65 : x
  2. Step 2: Convert to fraction form
    299,079.09/412,712.93 = 169,999.65/x
  3. Step 3: Cross multiply
    299,079.09x = 412,712.93 × 169,999.65
  4. Step 4: Simplify right side
    299,079.09x = 70,161,054,075.47
  5. Step 5: Solve for x
    x = 70,161,054,075.47/299,079.09
  6. Step 6: Final answer
    x = 234,590.30

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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.