Home / 397,841.45-549,031.80-216,565.57

Finding the Fourth Proportional to 397,841.45, 549,031.80 and 216,565.57

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Solution

The fourth proportional to 397,841.45, 549,031.80 and 216,565.57 is: 298,866.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,841.45 : 549,031.80 = 216,565.57 : x
  2. Step 2: Convert to fraction form
    397,841.45/549,031.80 = 216,565.57/x
  3. Step 3: Cross multiply
    397,841.45x = 549,031.80 × 216,565.57
  4. Step 4: Simplify right side
    397,841.45x = 118,901,384,715.13
  5. Step 5: Solve for x
    x = 118,901,384,715.13/397,841.45
  6. Step 6: Final answer
    x = 298,866.26

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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.