Home / 279,514.51-385,730.93-152,190.88

Finding the Fourth Proportional to 279,514.51, 385,730.93 and 152,190.88

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Solution

The fourth proportional to 279,514.51, 385,730.93 and 152,190.88 is: 210,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,514.51 : 385,730.93 = 152,190.88 : x
  2. Step 2: Convert to fraction form
    279,514.51/385,730.93 = 152,190.88/x
  3. Step 3: Cross multiply
    279,514.51x = 385,730.93 × 152,190.88
  4. Step 4: Simplify right side
    279,514.51x = 58,704,729,679.92
  5. Step 5: Solve for x
    x = 58,704,729,679.92/279,514.51
  6. Step 6: Final answer
    x = 210,023.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.