Home / 397,864.14-549,059.52-216,581.28

Finding the Fourth Proportional to 397,864.14, 549,059.52 and 216,581.28

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Solution

The fourth proportional to 397,864.14, 549,059.52 and 216,581.28 is: 298,885.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,864.14 : 549,059.52 = 216,581.28 : x
  2. Step 2: Convert to fraction form
    397,864.14/549,059.52 = 216,581.28/x
  3. Step 3: Cross multiply
    397,864.14x = 549,059.52 × 216,581.28
  4. Step 4: Simplify right side
    397,864.14x = 118,916,013,637.79
  5. Step 5: Solve for x
    x = 118,916,013,637.79/397,864.14
  6. Step 6: Final answer
    x = 298,885.98

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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.