Home / 307,601.40-424,409.76-180,208.56

Finding the Fourth Proportional to 307,601.40, 424,409.76 and 180,208.56

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Solution

The fourth proportional to 307,601.40, 424,409.76 and 180,208.56 is: 248,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,601.40 : 424,409.76 = 180,208.56 : x
  2. Step 2: Convert to fraction form
    307,601.40/424,409.76 = 180,208.56/x
  3. Step 3: Cross multiply
    307,601.40x = 424,409.76 × 180,208.56
  4. Step 4: Simplify right side
    307,601.40x = 76,482,271,699.55
  5. Step 5: Solve for x
    x = 76,482,271,699.55/307,601.40
  6. Step 6: Final answer
    x = 248,640.84

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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.