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Finding the Fourth Proportional to 345,671.93, 518,507.91 and 109,033.06

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Solution

The fourth proportional to 345,671.93, 518,507.91 and 109,033.06 is: 163,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,671.93 : 518,507.91 = 109,033.06 : x
  2. Step 2: Convert to fraction form
    345,671.93/518,507.91 = 109,033.06/x
  3. Step 3: Cross multiply
    345,671.93x = 518,507.91 × 109,033.06
  4. Step 4: Simplify right side
    345,671.93x = 56,534,504,164.47
  5. Step 5: Solve for x
    x = 56,534,504,164.47/345,671.93
  6. Step 6: Final answer
    x = 163,549.60

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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.