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Finding the Fourth Proportional to 329,529.40, 493,710.90 and 308,534.20

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Solution

The fourth proportional to 329,529.40, 493,710.90 and 308,534.20 is: 462,255.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,529.40 : 493,710.90 = 308,534.20 : x
  2. Step 2: Convert to fraction form
    329,529.40/493,710.90 = 308,534.20/x
  3. Step 3: Cross multiply
    329,529.40x = 493,710.90 × 308,534.20
  4. Step 4: Simplify right side
    329,529.40x = 152,326,697,562.78
  5. Step 5: Solve for x
    x = 152,326,697,562.78/329,529.40
  6. Step 6: Final answer
    x = 462,255.26

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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.