Home / 305,583.04-421,703.08-169,618.60

Finding the Fourth Proportional to 305,583.04, 421,703.08 and 169,618.60

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Solution

The fourth proportional to 305,583.04, 421,703.08 and 169,618.60 is: 234,072.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,583.04 : 421,703.08 = 169,618.60 : x
  2. Step 2: Convert to fraction form
    305,583.04/421,703.08 = 169,618.60/x
  3. Step 3: Cross multiply
    305,583.04x = 421,703.08 × 169,618.60
  4. Step 4: Simplify right side
    305,583.04x = 71,528,686,045.29
  5. Step 5: Solve for x
    x = 71,528,686,045.29/305,583.04
  6. Step 6: Final answer
    x = 234,072.83

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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.