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Finding the Fourth Proportional to 307,859.76, 424,818.24 and 180,511.44

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Solution

The fourth proportional to 307,859.76, 424,818.24 and 180,511.44 is: 249,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,859.76 : 424,818.24 = 180,511.44 : x
  2. Step 2: Convert to fraction form
    307,859.76/424,818.24 = 180,511.44/x
  3. Step 3: Cross multiply
    307,859.76x = 424,818.24 × 180,511.44
  4. Step 4: Simplify right side
    307,859.76x = 76,684,552,240.67
  5. Step 5: Solve for x
    x = 76,684,552,240.67/307,859.76
  6. Step 6: Final answer
    x = 249,089.24

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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.