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Finding the Fourth Proportional to 248,009.85, 372,019.10 and 70,521.57

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Solution

The fourth proportional to 248,009.85, 372,019.10 and 70,521.57 is: 105,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,009.85 : 372,019.10 = 70,521.57 : x
  2. Step 2: Convert to fraction form
    248,009.85/372,019.10 = 70,521.57/x
  3. Step 3: Cross multiply
    248,009.85x = 372,019.10 × 70,521.57
  4. Step 4: Simplify right side
    248,009.85x = 26,235,370,649.38
  5. Step 5: Solve for x
    x = 26,235,370,649.38/248,009.85
  6. Step 6: Final answer
    x = 105,783.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.