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Finding the Fourth Proportional to 245,546.32, 368,319.48 and 162,420.88

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Solution

The fourth proportional to 245,546.32, 368,319.48 and 162,420.88 is: 243,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,546.32 : 368,319.48 = 162,420.88 : x
  2. Step 2: Convert to fraction form
    245,546.32/368,319.48 = 162,420.88/x
  3. Step 3: Cross multiply
    245,546.32x = 368,319.48 × 162,420.88
  4. Step 4: Simplify right side
    245,546.32x = 59,822,774,062.74
  5. Step 5: Solve for x
    x = 59,822,774,062.74/245,546.32
  6. Step 6: Final answer
    x = 243,631.32

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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.