Home / 210,422.27-315,634.61-70,180.49

Finding the Fourth Proportional to 210,422.27, 315,634.61 and 70,180.49

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Solution

The fourth proportional to 210,422.27, 315,634.61 and 70,180.49 is: 105,271.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,422.27 : 315,634.61 = 70,180.49 : x
  2. Step 2: Convert to fraction form
    210,422.27/315,634.61 = 70,180.49/x
  3. Step 3: Cross multiply
    210,422.27x = 315,634.61 × 70,180.49
  4. Step 4: Simplify right side
    210,422.27x = 22,151,391,590.76
  5. Step 5: Solve for x
    x = 22,151,391,590.76/210,422.27
  6. Step 6: Final answer
    x = 105,271.14

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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.