Home / 319,787.64-441,328.23-212,172.66

Finding the Fourth Proportional to 319,787.64, 441,328.23 and 212,172.66

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Solution

The fourth proportional to 319,787.64, 441,328.23 and 212,172.66 is: 292,812.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,787.64 : 441,328.23 = 212,172.66 : x
  2. Step 2: Convert to fraction form
    319,787.64/441,328.23 = 212,172.66/x
  3. Step 3: Cross multiply
    319,787.64x = 441,328.23 × 212,172.66
  4. Step 4: Simplify right side
    319,787.64x = 93,637,784,492.19
  5. Step 5: Solve for x
    x = 93,637,784,492.19/319,787.64
  6. Step 6: Final answer
    x = 292,812.39

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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.