Home / 374,434.25-516,718.64-213,289.20

Finding the Fourth Proportional to 374,434.25, 516,718.64 and 213,289.20

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Solution

The fourth proportional to 374,434.25, 516,718.64 and 213,289.20 is: 294,338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,434.25 : 516,718.64 = 213,289.20 : x
  2. Step 2: Convert to fraction form
    374,434.25/516,718.64 = 213,289.20/x
  3. Step 3: Cross multiply
    374,434.25x = 516,718.64 × 213,289.20
  4. Step 4: Simplify right side
    374,434.25x = 110,210,505,883.91
  5. Step 5: Solve for x
    x = 110,210,505,883.91/374,434.25
  6. Step 6: Final answer
    x = 294,338.75

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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.