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Finding the Fourth Proportional to 209,133.77, 288,603.83 and 118,506.98

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Solution

The fourth proportional to 209,133.77, 288,603.83 and 118,506.98 is: 163,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,133.77 : 288,603.83 = 118,506.98 : x
  2. Step 2: Convert to fraction form
    209,133.77/288,603.83 = 118,506.98/x
  3. Step 3: Cross multiply
    209,133.77x = 288,603.83 × 118,506.98
  4. Step 4: Simplify right side
    209,133.77x = 34,201,569,327.51
  5. Step 5: Solve for x
    x = 34,201,569,327.51/209,133.77
  6. Step 6: Final answer
    x = 163,539.20

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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.