Home / 307,938.20-424,946.50-171,968.36

Finding the Fourth Proportional to 307,938.20, 424,946.50 and 171,968.36

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Solution

The fourth proportional to 307,938.20, 424,946.50 and 171,968.36 is: 237,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,938.20 : 424,946.50 = 171,968.36 : x
  2. Step 2: Convert to fraction form
    307,938.20/424,946.50 = 171,968.36/x
  3. Step 3: Cross multiply
    307,938.20x = 424,946.50 × 171,968.36
  4. Step 4: Simplify right side
    307,938.20x = 73,077,352,692.74
  5. Step 5: Solve for x
    x = 73,077,352,692.74/307,938.20
  6. Step 6: Final answer
    x = 237,311.75

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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.