Home / 397,864.40-549,059.84-216,581.52

Finding the Fourth Proportional to 397,864.40, 549,059.84 and 216,581.52

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Solution

The fourth proportional to 397,864.40, 549,059.84 and 216,581.52 is: 298,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,864.40 : 549,059.84 = 216,581.52 : x
  2. Step 2: Convert to fraction form
    397,864.40/549,059.84 = 216,581.52/x
  3. Step 3: Cross multiply
    397,864.40x = 549,059.84 × 216,581.52
  4. Step 4: Simplify right side
    397,864.40x = 118,916,214,718.16
  5. Step 5: Solve for x
    x = 118,916,214,718.16/397,864.40
  6. Step 6: Final answer
    x = 298,886.29

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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.