Home / 380,395.92-524,939.95-210,626.40

Finding the Fourth Proportional to 380,395.92, 524,939.95 and 210,626.40

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Solution

The fourth proportional to 380,395.92, 524,939.95 and 210,626.40 is: 290,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,395.92 : 524,939.95 = 210,626.40 : x
  2. Step 2: Convert to fraction form
    380,395.92/524,939.95 = 210,626.40/x
  3. Step 3: Cross multiply
    380,395.92x = 524,939.95 × 210,626.40
  4. Step 4: Simplify right side
    380,395.92x = 110,566,208,733.41
  5. Step 5: Solve for x
    x = 110,566,208,733.41/380,395.92
  6. Step 6: Final answer
    x = 290,660.87

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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.