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Finding the Fourth Proportional to 389,426.84, 537,363 and 226,045.52

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Solution

The fourth proportional to 389,426.84, 537,363 and 226,045.52 is: 311,916.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,426.84 : 537,363 = 226,045.52 : x
  2. Step 2: Convert to fraction form
    389,426.84/537,363 = 226,045.52/x
  3. Step 3: Cross multiply
    389,426.84x = 537,363 × 226,045.52
  4. Step 4: Simplify right side
    389,426.84x = 121,468,498,763.76
  5. Step 5: Solve for x
    x = 121,468,498,763.76/389,426.84
  6. Step 6: Final answer
    x = 311,916.09

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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.