Home / 399,427.79-551,214.14-227,337.35

Finding the Fourth Proportional to 399,427.79, 551,214.14 and 227,337.35

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Solution

The fourth proportional to 399,427.79, 551,214.14 and 227,337.35 is: 313,727.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,427.79 : 551,214.14 = 227,337.35 : x
  2. Step 2: Convert to fraction form
    399,427.79/551,214.14 = 227,337.35/x
  3. Step 3: Cross multiply
    399,427.79x = 551,214.14 × 227,337.35
  4. Step 4: Simplify right side
    399,427.79x = 125,311,557,977.37
  5. Step 5: Solve for x
    x = 125,311,557,977.37/399,427.79
  6. Step 6: Final answer
    x = 313,727.69

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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.