Home / 398,447.03-549,853.45-217,158.93

Finding the Fourth Proportional to 398,447.03, 549,853.45 and 217,158.93

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Solution

The fourth proportional to 398,447.03, 549,853.45 and 217,158.93 is: 299,677.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,447.03 : 549,853.45 = 217,158.93 : x
  2. Step 2: Convert to fraction form
    398,447.03/549,853.45 = 217,158.93/x
  3. Step 3: Cross multiply
    398,447.03x = 549,853.45 × 217,158.93
  4. Step 4: Simplify right side
    398,447.03x = 119,405,586,315.91
  5. Step 5: Solve for x
    x = 119,405,586,315.91/398,447.03
  6. Step 6: Final answer
    x = 299,677.44

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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.