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Finding the Fourth Proportional to 525,435.51, 788,264.09 and 170,421.96

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Solution

The fourth proportional to 525,435.51, 788,264.09 and 170,421.96 is: 255,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,435.51 : 788,264.09 = 170,421.96 : x
  2. Step 2: Convert to fraction form
    525,435.51/788,264.09 = 170,421.96/x
  3. Step 3: Cross multiply
    525,435.51x = 788,264.09 × 170,421.96
  4. Step 4: Simplify right side
    525,435.51x = 134,337,510,363.31
  5. Step 5: Solve for x
    x = 134,337,510,363.31/525,435.51
  6. Step 6: Final answer
    x = 255,668.88

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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.