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Finding the Fourth Proportional to 294,528, 441,792 and 72,912

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Solution

The fourth proportional to 294,528, 441,792 and 72,912 is: 109,368

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,528 : 441,792 = 72,912 : x
  2. Step 2: Convert to fraction form
    294,528/441,792 = 72,912/x
  3. Step 3: Cross multiply
    294,528x = 441,792 × 72,912
  4. Step 4: Simplify right side
    294,528x = 32,211,938,304
  5. Step 5: Solve for x
    x = 32,211,938,304/294,528
  6. Step 6: Final answer
    x = 109,368

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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.