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Finding the Fourth Proportional to 213,868.42, 295,134 and 118,369.42

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Solution

The fourth proportional to 213,868.42, 295,134 and 118,369.42 is: 163,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,868.42 : 295,134 = 118,369.42 : x
  2. Step 2: Convert to fraction form
    213,868.42/295,134 = 118,369.42/x
  3. Step 3: Cross multiply
    213,868.42x = 295,134 × 118,369.42
  4. Step 4: Simplify right side
    213,868.42x = 34,934,840,402.28
  5. Step 5: Solve for x
    x = 34,934,840,402.28/213,868.42
  6. Step 6: Final answer
    x = 163,347.35

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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.