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Finding the Fourth Proportional to 482,203.42, 665,430.45 and 278,238.34

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Solution

The fourth proportional to 482,203.42, 665,430.45 and 278,238.34 is: 383,962.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,203.42 : 665,430.45 = 278,238.34 : x
  2. Step 2: Convert to fraction form
    482,203.42/665,430.45 = 278,238.34/x
  3. Step 3: Cross multiply
    482,203.42x = 665,430.45 × 278,238.34
  4. Step 4: Simplify right side
    482,203.42x = 185,148,263,793.45
  5. Step 5: Solve for x
    x = 185,148,263,793.45/482,203.42
  6. Step 6: Final answer
    x = 383,962.98

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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.