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Finding the Fourth Proportional to 350,159.89, 525,403.86 and 172,570.02

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Solution

The fourth proportional to 350,159.89, 525,403.86 and 172,570.02 is: 258,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,159.89 : 525,403.86 = 172,570.02 : x
  2. Step 2: Convert to fraction form
    350,159.89/525,403.86 = 172,570.02/x
  3. Step 3: Cross multiply
    350,159.89x = 525,403.86 × 172,570.02
  4. Step 4: Simplify right side
    350,159.89x = 90,668,954,628.28
  5. Step 5: Solve for x
    x = 90,668,954,628.28/350,159.89
  6. Step 6: Final answer
    x = 258,935.87

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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.