Home / 400,842.17-553,162.33-219,557.13

Finding the Fourth Proportional to 400,842.17, 553,162.33 and 219,557.13

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Solution

The fourth proportional to 400,842.17, 553,162.33 and 219,557.13 is: 302,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,842.17 : 553,162.33 = 219,557.13 : x
  2. Step 2: Convert to fraction form
    400,842.17/553,162.33 = 219,557.13/x
  3. Step 3: Cross multiply
    400,842.17x = 553,162.33 × 219,557.13
  4. Step 4: Simplify right side
    400,842.17x = 121,450,733,598.91
  5. Step 5: Solve for x
    x = 121,450,733,598.91/400,842.17
  6. Step 6: Final answer
    x = 302,988.91

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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.