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Finding the Fourth Proportional to 307,853.69, 424,908.95 and 180,570.29

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Solution

The fourth proportional to 307,853.69, 424,908.95 and 180,570.29 is: 249,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,853.69 : 424,908.95 = 180,570.29 : x
  2. Step 2: Convert to fraction form
    307,853.69/424,908.95 = 180,570.29/x
  3. Step 3: Cross multiply
    307,853.69x = 424,908.95 × 180,570.29
  4. Step 4: Simplify right side
    307,853.69x = 76,725,929,297.70
  5. Step 5: Solve for x
    x = 76,725,929,297.70/307,853.69
  6. Step 6: Final answer
    x = 249,228.56

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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.