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Finding the Fourth Proportional to 307,554.56, 424,415.67 and 180,314.90

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Solution

The fourth proportional to 307,554.56, 424,415.67 and 180,314.90 is: 248,828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,554.56 : 424,415.67 = 180,314.90 : x
  2. Step 2: Convert to fraction form
    307,554.56/424,415.67 = 180,314.90/x
  3. Step 3: Cross multiply
    307,554.56x = 424,415.67 × 180,314.90
  4. Step 4: Simplify right side
    307,554.56x = 76,528,469,094.48
  5. Step 5: Solve for x
    x = 76,528,469,094.48/307,554.56
  6. Step 6: Final answer
    x = 248,828.92

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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.