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Finding the Fourth Proportional to 380,253.63, 570,363.14 and 127,514.69

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Solution

The fourth proportional to 380,253.63, 570,363.14 and 127,514.69 is: 191,266.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,253.63 : 570,363.14 = 127,514.69 : x
  2. Step 2: Convert to fraction form
    380,253.63/570,363.14 = 127,514.69/x
  3. Step 3: Cross multiply
    380,253.63x = 570,363.14 × 127,514.69
  4. Step 4: Simplify right side
    380,253.63x = 72,729,678,590.36
  5. Step 5: Solve for x
    x = 72,729,678,590.36/380,253.63
  6. Step 6: Final answer
    x = 191,266.23

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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.