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Finding the Fourth Proportional to 352,669.93, 528,774.85 and 127,987.81

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Solution

The fourth proportional to 352,669.93, 528,774.85 and 127,987.81 is: 191,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,669.93 : 528,774.85 = 127,987.81 : x
  2. Step 2: Convert to fraction form
    352,669.93/528,774.85 = 127,987.81/x
  3. Step 3: Cross multiply
    352,669.93x = 528,774.85 × 127,987.81
  4. Step 4: Simplify right side
    352,669.93x = 67,676,735,034.58
  5. Step 5: Solve for x
    x = 67,676,735,034.58/352,669.93
  6. Step 6: Final answer
    x = 191,898.23

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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.