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Finding the Fourth Proportional to 371,838.60, 557,101.80 and 304,916.40

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Solution

The fourth proportional to 371,838.60, 557,101.80 and 304,916.40 is: 456,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,838.60 : 557,101.80 = 304,916.40 : x
  2. Step 2: Convert to fraction form
    371,838.60/557,101.80 = 304,916.40/x
  3. Step 3: Cross multiply
    371,838.60x = 557,101.80 × 304,916.40
  4. Step 4: Simplify right side
    371,838.60x = 169,869,475,289.52
  5. Step 5: Solve for x
    x = 169,869,475,289.52/371,838.60
  6. Step 6: Final answer
    x = 456,836.58

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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.