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Finding the Fourth Proportional to 315,074.64, 434,674.44 and 192,503.28

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Solution

The fourth proportional to 315,074.64, 434,674.44 and 192,503.28 is: 265,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,074.64 : 434,674.44 = 192,503.28 : x
  2. Step 2: Convert to fraction form
    315,074.64/434,674.44 = 192,503.28/x
  3. Step 3: Cross multiply
    315,074.64x = 434,674.44 × 192,503.28
  4. Step 4: Simplify right side
    315,074.64x = 83,676,255,432.16
  5. Step 5: Solve for x
    x = 83,676,255,432.16/315,074.64
  6. Step 6: Final answer
    x = 265,575.98

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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.