Home / 397,845.18-549,073.18-223,444.08

Finding the Fourth Proportional to 397,845.18, 549,073.18 and 223,444.08

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Solution

The fourth proportional to 397,845.18, 549,073.18 and 223,444.08 is: 308,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,845.18 : 549,073.18 = 223,444.08 : x
  2. Step 2: Convert to fraction form
    397,845.18/549,073.18 = 223,444.08/x
  3. Step 3: Cross multiply
    397,845.18x = 549,073.18 × 223,444.08
  4. Step 4: Simplify right side
    397,845.18x = 122,687,151,557.77
  5. Step 5: Solve for x
    x = 122,687,151,557.77/397,845.18
  6. Step 6: Final answer
    x = 308,379.13

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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.