Home / 397,968.60-549,168.98-225,890.13

Finding the Fourth Proportional to 397,968.60, 549,168.98 and 225,890.13

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Solution

The fourth proportional to 397,968.60, 549,168.98 and 225,890.13 is: 311,712.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,968.60 : 549,168.98 = 225,890.13 : x
  2. Step 2: Convert to fraction form
    397,968.60/549,168.98 = 225,890.13/x
  3. Step 3: Cross multiply
    397,968.60x = 549,168.98 × 225,890.13
  4. Step 4: Simplify right side
    397,968.60x = 124,051,851,154.72
  5. Step 5: Solve for x
    x = 124,051,851,154.72/397,968.60
  6. Step 6: Final answer
    x = 311,712.66

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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.