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Finding the Fourth Proportional to 368,966.88, 553,450.50 and 284,850

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Solution

The fourth proportional to 368,966.88, 553,450.50 and 284,850 is: 427,275.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,966.88 : 553,450.50 = 284,850 : x
  2. Step 2: Convert to fraction form
    368,966.88/553,450.50 = 284,850/x
  3. Step 3: Cross multiply
    368,966.88x = 553,450.50 × 284,850
  4. Step 4: Simplify right side
    368,966.88x = 157,650,374,925
  5. Step 5: Solve for x
    x = 157,650,374,925/368,966.88
  6. Step 6: Final answer
    x = 427,275.14

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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.