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Finding the Fourth Proportional to 330,612.99, 456,214 and 185,424.74

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Solution

The fourth proportional to 330,612.99, 456,214 and 185,424.74 is: 255,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,612.99 : 456,214 = 185,424.74 : x
  2. Step 2: Convert to fraction form
    330,612.99/456,214 = 185,424.74/x
  3. Step 3: Cross multiply
    330,612.99x = 456,214 × 185,424.74
  4. Step 4: Simplify right side
    330,612.99x = 84,593,362,334.36
  5. Step 5: Solve for x
    x = 84,593,362,334.36/330,612.99
  6. Step 6: Final answer
    x = 255,868.24

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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.