Home / 208,646.08-312,867.06-145,496.45

Finding the Fourth Proportional to 208,646.08, 312,867.06 and 145,496.45

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Solution

The fourth proportional to 208,646.08, 312,867.06 and 145,496.45 is: 218,173.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,646.08 : 312,867.06 = 145,496.45 : x
  2. Step 2: Convert to fraction form
    208,646.08/312,867.06 = 145,496.45/x
  3. Step 3: Cross multiply
    208,646.08x = 312,867.06 × 145,496.45
  4. Step 4: Simplify right side
    208,646.08x = 45,521,046,788.49
  5. Step 5: Solve for x
    x = 45,521,046,788.49/208,646.08
  6. Step 6: Final answer
    x = 218,173.51

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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.