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Finding the Fourth Proportional to 446,046, 668,937.78 and 130,427.88

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Solution

The fourth proportional to 446,046, 668,937.78 and 130,427.88 is: 195,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,046 : 668,937.78 = 130,427.88 : x
  2. Step 2: Convert to fraction form
    446,046/668,937.78 = 130,427.88/x
  3. Step 3: Cross multiply
    446,046x = 668,937.78 × 130,427.88
  4. Step 4: Simplify right side
    446,046x = 87,248,136,497.31
  5. Step 5: Solve for x
    x = 87,248,136,497.31/446,046
  6. Step 6: Final answer
    x = 195,603.45

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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.