Home / 305,303.10-421,338.69-169,380.24

Finding the Fourth Proportional to 305,303.10, 421,338.69 and 169,380.24

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Solution

The fourth proportional to 305,303.10, 421,338.69 and 169,380.24 is: 233,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,303.10 : 421,338.69 = 169,380.24 : x
  2. Step 2: Convert to fraction form
    305,303.10/421,338.69 = 169,380.24/x
  3. Step 3: Cross multiply
    305,303.10x = 421,338.69 × 169,380.24
  4. Step 4: Simplify right side
    305,303.10x = 71,366,448,433.49
  5. Step 5: Solve for x
    x = 71,366,448,433.49/305,303.10
  6. Step 6: Final answer
    x = 233,756.06

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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.