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Finding the Fourth Proportional to 525,104.70, 787,851.45 and 170,130.30

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Solution

The fourth proportional to 525,104.70, 787,851.45 and 170,130.30 is: 255,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,104.70 : 787,851.45 = 170,130.30 : x
  2. Step 2: Convert to fraction form
    525,104.70/787,851.45 = 170,130.30/x
  3. Step 3: Cross multiply
    525,104.70x = 787,851.45 × 170,130.30
  4. Step 4: Simplify right side
    525,104.70x = 134,037,403,543.94
  5. Step 5: Solve for x
    x = 134,037,403,543.94/525,104.70
  6. Step 6: Final answer
    x = 255,258.43

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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.