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Finding the Fourth Proportional to 230,772.40, 346,205.40 and 130,980.40

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Solution

The fourth proportional to 230,772.40, 346,205.40 and 130,980.40 is: 196,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,772.40 : 346,205.40 = 130,980.40 : x
  2. Step 2: Convert to fraction form
    230,772.40/346,205.40 = 130,980.40/x
  3. Step 3: Cross multiply
    230,772.40x = 346,205.40 × 130,980.40
  4. Step 4: Simplify right side
    230,772.40x = 45,346,121,774.16
  5. Step 5: Solve for x
    x = 45,346,121,774.16/230,772.40
  6. Step 6: Final answer
    x = 196,497.16

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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.