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Finding the Fourth Proportional to 525,389.68, 788,199.76 and 170,439.60

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Solution

The fourth proportional to 525,389.68, 788,199.76 and 170,439.60 is: 255,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,389.68 : 788,199.76 = 170,439.60 : x
  2. Step 2: Convert to fraction form
    525,389.68/788,199.76 = 170,439.60/x
  3. Step 3: Cross multiply
    525,389.68x = 788,199.76 × 170,439.60
  4. Step 4: Simplify right side
    525,389.68x = 134,340,451,814.50
  5. Step 5: Solve for x
    x = 134,340,451,814.50/525,389.68
  6. Step 6: Final answer
    x = 255,696.78

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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.