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Finding the Fourth Proportional to 351,888.32, 527,825.06 and 85,650.32

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Solution

The fourth proportional to 351,888.32, 527,825.06 and 85,650.32 is: 128,473.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,888.32 : 527,825.06 = 85,650.32 : x
  2. Step 2: Convert to fraction form
    351,888.32/527,825.06 = 85,650.32/x
  3. Step 3: Cross multiply
    351,888.32x = 527,825.06 × 85,650.32
  4. Step 4: Simplify right side
    351,888.32x = 45,208,385,293.02
  5. Step 5: Solve for x
    x = 45,208,385,293.02/351,888.32
  6. Step 6: Final answer
    x = 128,473.67

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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.