Home / 305,736.04-421,927.84-176,670.20

Finding the Fourth Proportional to 305,736.04, 421,927.84 and 176,670.20

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Solution

The fourth proportional to 305,736.04, 421,927.84 and 176,670.20 is: 243,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,736.04 : 421,927.84 = 176,670.20 : x
  2. Step 2: Convert to fraction form
    305,736.04/421,927.84 = 176,670.20/x
  3. Step 3: Cross multiply
    305,736.04x = 421,927.84 × 176,670.20
  4. Step 4: Simplify right side
    305,736.04x = 74,542,075,878.37
  5. Step 5: Solve for x
    x = 74,542,075,878.37/305,736.04
  6. Step 6: Final answer
    x = 243,811.87

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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.