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Finding the Fourth Proportional to 208,294.98, 287,522.55 and 136,698.18

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Solution

The fourth proportional to 208,294.98, 287,522.55 and 136,698.18 is: 188,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,294.98 : 287,522.55 = 136,698.18 : x
  2. Step 2: Convert to fraction form
    208,294.98/287,522.55 = 136,698.18/x
  3. Step 3: Cross multiply
    208,294.98x = 287,522.55 × 136,698.18
  4. Step 4: Simplify right side
    208,294.98x = 39,303,809,293.96
  5. Step 5: Solve for x
    x = 39,303,809,293.96/208,294.98
  6. Step 6: Final answer
    x = 188,693.02

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1.5x scale

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.