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Finding the Fourth Proportional to 248,015.34, 342,259.29 and 134,838.90

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Solution

The fourth proportional to 248,015.34, 342,259.29 and 134,838.90 is: 186,076.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,015.34 : 342,259.29 = 134,838.90 : x
  2. Step 2: Convert to fraction form
    248,015.34/342,259.29 = 134,838.90/x
  3. Step 3: Cross multiply
    248,015.34x = 342,259.29 × 134,838.90
  4. Step 4: Simplify right side
    248,015.34x = 46,149,866,178.38
  5. Step 5: Solve for x
    x = 46,149,866,178.38/248,015.34
  6. Step 6: Final answer
    x = 186,076.66

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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.