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Finding the Fourth Proportional to 219,017.90, 302,244.69 and 118,415.90

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Solution

The fourth proportional to 219,017.90, 302,244.69 and 118,415.90 is: 163,413.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,017.90 : 302,244.69 = 118,415.90 : x
  2. Step 2: Convert to fraction form
    219,017.90/302,244.69 = 118,415.90/x
  3. Step 3: Cross multiply
    219,017.90x = 302,244.69 × 118,415.90
  4. Step 4: Simplify right side
    219,017.90x = 35,790,574,883.27
  5. Step 5: Solve for x
    x = 35,790,574,883.27/219,017.90
  6. Step 6: Final answer
    x = 163,413.93

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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.