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Finding the Fourth Proportional to 445,483.32, 668,157.06 and 145,995

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Solution

The fourth proportional to 445,483.32, 668,157.06 and 145,995 is: 218,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,483.32 : 668,157.06 = 145,995 : x
  2. Step 2: Convert to fraction form
    445,483.32/668,157.06 = 145,995/x
  3. Step 3: Cross multiply
    445,483.32x = 668,157.06 × 145,995
  4. Step 4: Simplify right side
    445,483.32x = 97,547,589,974.70
  5. Step 5: Solve for x
    x = 97,547,589,974.70/445,483.32
  6. Step 6: Final answer
    x = 218,970.24

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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.