Home / 399,826.48-551,741.88-218,547.76

Finding the Fourth Proportional to 399,826.48, 551,741.88 and 218,547.76

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Solution

The fourth proportional to 399,826.48, 551,741.88 and 218,547.76 is: 301,585.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,826.48 : 551,741.88 = 218,547.76 : x
  2. Step 2: Convert to fraction form
    399,826.48/551,741.88 = 218,547.76/x
  3. Step 3: Cross multiply
    399,826.48x = 551,741.88 × 218,547.76
  4. Step 4: Simplify right side
    399,826.48x = 120,581,951,972.19
  5. Step 5: Solve for x
    x = 120,581,951,972.19/399,826.48
  6. Step 6: Final answer
    x = 301,585.71

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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.