Home / 286,327.77-395,167.18-165,470.05

Finding the Fourth Proportional to 286,327.77, 395,167.18 and 165,470.05

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Solution

The fourth proportional to 286,327.77, 395,167.18 and 165,470.05 is: 228,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,327.77 : 395,167.18 = 165,470.05 : x
  2. Step 2: Convert to fraction form
    286,327.77/395,167.18 = 165,470.05/x
  3. Step 3: Cross multiply
    286,327.77x = 395,167.18 × 165,470.05
  4. Step 4: Simplify right side
    286,327.77x = 65,388,330,643.45
  5. Step 5: Solve for x
    x = 65,388,330,643.45/286,327.77
  6. Step 6: Final answer
    x = 228,368.80

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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.