Home / 305,733.02-421,923.70-176,667.21

Finding the Fourth Proportional to 305,733.02, 421,923.70 and 176,667.21

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Solution

The fourth proportional to 305,733.02, 421,923.70 and 176,667.21 is: 243,807.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,733.02 : 421,923.70 = 176,667.21 : x
  2. Step 2: Convert to fraction form
    305,733.02/421,923.70 = 176,667.21/x
  3. Step 3: Cross multiply
    305,733.02x = 421,923.70 × 176,667.21
  4. Step 4: Simplify right side
    305,733.02x = 74,540,082,911.88
  5. Step 5: Solve for x
    x = 74,540,082,911.88/305,733.02
  6. Step 6: Final answer
    x = 243,807.76

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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.