Home / 247,108.12-340,754.48-211,416.28

Finding the Fourth Proportional to 247,108.12, 340,754.48 and 211,416.28

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Solution

The fourth proportional to 247,108.12, 340,754.48 and 211,416.28 is: 291,536.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,108.12 : 340,754.48 = 211,416.28 : x
  2. Step 2: Convert to fraction form
    247,108.12/340,754.48 = 211,416.28/x
  3. Step 3: Cross multiply
    247,108.12x = 340,754.48 × 211,416.28
  4. Step 4: Simplify right side
    247,108.12x = 72,041,044,554.93
  5. Step 5: Solve for x
    x = 72,041,044,554.93/247,108.12
  6. Step 6: Final answer
    x = 291,536.53

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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.