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Finding the Fourth Proportional to 245,916.84, 368,688.12 and 103,805.58

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Solution

The fourth proportional to 245,916.84, 368,688.12 and 103,805.58 is: 155,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,916.84 : 368,688.12 = 103,805.58 : x
  2. Step 2: Convert to fraction form
    245,916.84/368,688.12 = 103,805.58/x
  3. Step 3: Cross multiply
    245,916.84x = 368,688.12 × 103,805.58
  4. Step 4: Simplify right side
    245,916.84x = 38,271,884,135.71
  5. Step 5: Solve for x
    x = 38,271,884,135.71/245,916.84
  6. Step 6: Final answer
    x = 155,629.38

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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.