Home / 307,549.06-424,408.08-180,309.40

Finding the Fourth Proportional to 307,549.06, 424,408.08 and 180,309.40

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Solution

The fourth proportional to 307,549.06, 424,408.08 and 180,309.40 is: 248,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,549.06 : 424,408.08 = 180,309.40 : x
  2. Step 2: Convert to fraction form
    307,549.06/424,408.08 = 180,309.40/x
  3. Step 3: Cross multiply
    307,549.06x = 424,408.08 × 180,309.40
  4. Step 4: Simplify right side
    307,549.06x = 76,524,766,259.95
  5. Step 5: Solve for x
    x = 76,524,766,259.95/307,549.06
  6. Step 6: Final answer
    x = 248,821.33

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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.