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Finding the Fourth Proportional to 525,513.80, 788,385.90 and 170,467.40

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Solution

The fourth proportional to 525,513.80, 788,385.90 and 170,467.40 is: 255,738.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,513.80 : 788,385.90 = 170,467.40 : x
  2. Step 2: Convert to fraction form
    525,513.80/788,385.90 = 170,467.40/x
  3. Step 3: Cross multiply
    525,513.80x = 788,385.90 × 170,467.40
  4. Step 4: Simplify right side
    525,513.80x = 134,394,094,569.66
  5. Step 5: Solve for x
    x = 134,394,094,569.66/525,513.80
  6. Step 6: Final answer
    x = 255,738.47

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1.5x scale

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.