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Finding the Fourth Proportional to 398,030.27, 549,137.51 and 225,848.52

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Solution

The fourth proportional to 398,030.27, 549,137.51 and 225,848.52 is: 311,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,030.27 : 549,137.51 = 225,848.52 : x
  2. Step 2: Convert to fraction form
    398,030.27/549,137.51 = 225,848.52/x
  3. Step 3: Cross multiply
    398,030.27x = 549,137.51 × 225,848.52
  4. Step 4: Simplify right side
    398,030.27x = 124,021,892,415.34
  5. Step 5: Solve for x
    x = 124,021,892,415.34/398,030.27
  6. Step 6: Final answer
    x = 311,589.10

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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.