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Finding the Fourth Proportional to 204,645.80, 307,624.80 and 145,888.40

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Solution

The fourth proportional to 204,645.80, 307,624.80 and 145,888.40 is: 219,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,645.80 : 307,624.80 = 145,888.40 : x
  2. Step 2: Convert to fraction form
    204,645.80/307,624.80 = 145,888.40/x
  3. Step 3: Cross multiply
    204,645.80x = 307,624.80 × 145,888.40
  4. Step 4: Simplify right side
    204,645.80x = 44,878,889,872.32
  5. Step 5: Solve for x
    x = 44,878,889,872.32/204,645.80
  6. Step 6: Final answer
    x = 219,300.32

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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.