Home / 315,640.04-473,570.78-163,764.09

Finding the Fourth Proportional to 315,640.04, 473,570.78 and 163,764.09

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Solution

The fourth proportional to 315,640.04, 473,570.78 and 163,764.09 is: 245,703.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,640.04 : 473,570.78 = 163,764.09 : x
  2. Step 2: Convert to fraction form
    315,640.04/473,570.78 = 163,764.09/x
  3. Step 3: Cross multiply
    315,640.04x = 473,570.78 × 163,764.09
  4. Step 4: Simplify right side
    315,640.04x = 77,553,887,018.47
  5. Step 5: Solve for x
    x = 77,553,887,018.47/315,640.04
  6. Step 6: Final answer
    x = 245,703.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.