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Finding the Fourth Proportional to 525,064.80, 787,683.60 and 225,688.80

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Solution

The fourth proportional to 525,064.80, 787,683.60 and 225,688.80 is: 338,570.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,064.80 : 787,683.60 = 225,688.80 : x
  2. Step 2: Convert to fraction form
    525,064.80/787,683.60 = 225,688.80/x
  3. Step 3: Cross multiply
    525,064.80x = 787,683.60 × 225,688.80
  4. Step 4: Simplify right side
    525,064.80x = 177,771,366,463.68
  5. Step 5: Solve for x
    x = 177,771,366,463.68/525,064.80
  6. Step 6: Final answer
    x = 338,570.34

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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.