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Finding the Fourth Proportional to 397,848.80, 549,102.50 and 254,603.94

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Solution

The fourth proportional to 397,848.80, 549,102.50 and 254,603.94 is: 351,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,848.80 : 549,102.50 = 254,603.94 : x
  2. Step 2: Convert to fraction form
    397,848.80/549,102.50 = 254,603.94/x
  3. Step 3: Cross multiply
    397,848.80x = 549,102.50 × 254,603.94
  4. Step 4: Simplify right side
    397,848.80x = 139,803,658,690.83
  5. Step 5: Solve for x
    x = 139,803,658,690.83/397,848.80
  6. Step 6: Final answer
    x = 351,398.97

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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.