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Finding the Fourth Proportional to 388,946, 583,419 and 93,458

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Solution

The fourth proportional to 388,946, 583,419 and 93,458 is: 140,187

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,946 : 583,419 = 93,458 : x
  2. Step 2: Convert to fraction form
    388,946/583,419 = 93,458/x
  3. Step 3: Cross multiply
    388,946x = 583,419 × 93,458
  4. Step 4: Simplify right side
    388,946x = 54,525,172,902
  5. Step 5: Solve for x
    x = 54,525,172,902/388,946
  6. Step 6: Final answer
    x = 140,187

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.