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Finding the Fourth Proportional to 548,585.55, 757,200.21 and 319,187.15

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Solution

The fourth proportional to 548,585.55, 757,200.21 and 319,187.15 is: 440,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,585.55 : 757,200.21 = 319,187.15 : x
  2. Step 2: Convert to fraction form
    548,585.55/757,200.21 = 319,187.15/x
  3. Step 3: Cross multiply
    548,585.55x = 757,200.21 × 319,187.15
  4. Step 4: Simplify right side
    548,585.55x = 241,688,573,223.30
  5. Step 5: Solve for x
    x = 241,688,573,223.30/548,585.55
  6. Step 6: Final answer
    x = 440,566.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.