Home / 297,316.20-446,042.40-128,864.80

Finding the Fourth Proportional to 297,316.20, 446,042.40 and 128,864.80

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Solution

The fourth proportional to 297,316.20, 446,042.40 and 128,864.80 is: 193,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,316.20 : 446,042.40 = 128,864.80 : x
  2. Step 2: Convert to fraction form
    297,316.20/446,042.40 = 128,864.80/x
  3. Step 3: Cross multiply
    297,316.20x = 446,042.40 × 128,864.80
  4. Step 4: Simplify right side
    297,316.20x = 57,479,164,667.52
  5. Step 5: Solve for x
    x = 57,479,164,667.52/297,316.20
  6. Step 6: Final answer
    x = 193,326.72

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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.