Home / 305,569.65-421,678.06-169,603.26

Finding the Fourth Proportional to 305,569.65, 421,678.06 and 169,603.26

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Solution

The fourth proportional to 305,569.65, 421,678.06 and 169,603.26 is: 234,048.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,569.65 : 421,678.06 = 169,603.26 : x
  2. Step 2: Convert to fraction form
    305,569.65/421,678.06 = 169,603.26/x
  3. Step 3: Cross multiply
    305,569.65x = 421,678.06 × 169,603.26
  4. Step 4: Simplify right side
    305,569.65x = 71,517,973,646.48
  5. Step 5: Solve for x
    x = 71,517,973,646.48/305,569.65
  6. Step 6: Final answer
    x = 234,048.03

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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.