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Finding the Fourth Proportional to 445,564.40, 668,051.40 and 245,980.40

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Solution

The fourth proportional to 445,564.40, 668,051.40 and 245,980.40 is: 368,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,564.40 : 668,051.40 = 245,980.40 : x
  2. Step 2: Convert to fraction form
    445,564.40/668,051.40 = 245,980.40/x
  3. Step 3: Cross multiply
    445,564.40x = 668,051.40 × 245,980.40
  4. Step 4: Simplify right side
    445,564.40x = 164,327,550,592.56
  5. Step 5: Solve for x
    x = 164,327,550,592.56/445,564.40
  6. Step 6: Final answer
    x = 368,807.63

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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.