Home / 340,486.16-469,836.13-209,643.03

Finding the Fourth Proportional to 340,486.16, 469,836.13 and 209,643.03

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Solution

The fourth proportional to 340,486.16, 469,836.13 and 209,643.03 is: 289,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,486.16 : 469,836.13 = 209,643.03 : x
  2. Step 2: Convert to fraction form
    340,486.16/469,836.13 = 209,643.03/x
  3. Step 3: Cross multiply
    340,486.16x = 469,836.13 × 209,643.03
  4. Step 4: Simplify right side
    340,486.16x = 98,497,868,848.46
  5. Step 5: Solve for x
    x = 98,497,868,848.46/340,486.16
  6. Step 6: Final answer
    x = 289,285.97

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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.