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Finding the Fourth Proportional to 330,901.92, 456,803.28 and 203,686.56

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Solution

The fourth proportional to 330,901.92, 456,803.28 and 203,686.56 is: 281,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,901.92 : 456,803.28 = 203,686.56 : x
  2. Step 2: Convert to fraction form
    330,901.92/456,803.28 = 203,686.56/x
  3. Step 3: Cross multiply
    330,901.92x = 456,803.28 × 203,686.56
  4. Step 4: Simplify right side
    330,901.92x = 93,044,688,699.92
  5. Step 5: Solve for x
    x = 93,044,688,699.92/330,901.92
  6. Step 6: Final answer
    x = 281,185.10

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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.