Home / 307,529.49-424,390.89-171,563.45

Finding the Fourth Proportional to 307,529.49, 424,390.89 and 171,563.45

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Solution

The fourth proportional to 307,529.49, 424,390.89 and 171,563.45 is: 236,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,529.49 : 424,390.89 = 171,563.45 : x
  2. Step 2: Convert to fraction form
    307,529.49/424,390.89 = 171,563.45/x
  3. Step 3: Cross multiply
    307,529.49x = 424,390.89 × 171,563.45
  4. Step 4: Simplify right side
    307,529.49x = 72,809,966,145.58
  5. Step 5: Solve for x
    x = 72,809,966,145.58/307,529.49
  6. Step 6: Final answer
    x = 236,757.67

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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.