Home / 207,820.37-286,368.39-143,309.27

Finding the Fourth Proportional to 207,820.37, 286,368.39 and 143,309.27

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Solution

The fourth proportional to 207,820.37, 286,368.39 and 143,309.27 is: 197,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,820.37 : 286,368.39 = 143,309.27 : x
  2. Step 2: Convert to fraction form
    207,820.37/286,368.39 = 143,309.27/x
  3. Step 3: Cross multiply
    207,820.37x = 286,368.39 × 143,309.27
  4. Step 4: Simplify right side
    207,820.37x = 41,039,243,490.13
  5. Step 5: Solve for x
    x = 41,039,243,490.13/207,820.37
  6. Step 6: Final answer
    x = 197,474.60

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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.