Home / 397,974.18-549,214.23-216,696.05

Finding the Fourth Proportional to 397,974.18, 549,214.23 and 216,696.05

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Solution

The fourth proportional to 397,974.18, 549,214.23 and 216,696.05 is: 299,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,974.18 : 549,214.23 = 216,696.05 : x
  2. Step 2: Convert to fraction form
    397,974.18/549,214.23 = 216,696.05/x
  3. Step 3: Cross multiply
    397,974.18x = 549,214.23 × 216,696.05
  4. Step 4: Simplify right side
    397,974.18x = 119,012,551,498.72
  5. Step 5: Solve for x
    x = 119,012,551,498.72/397,974.18
  6. Step 6: Final answer
    x = 299,045.91

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1.5x scale

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.