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Finding the Fourth Proportional to 303,477.80, 455,216.70 and 125,966.30

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Solution

The fourth proportional to 303,477.80, 455,216.70 and 125,966.30 is: 188,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,477.80 : 455,216.70 = 125,966.30 : x
  2. Step 2: Convert to fraction form
    303,477.80/455,216.70 = 125,966.30/x
  3. Step 3: Cross multiply
    303,477.80x = 455,216.70 × 125,966.30
  4. Step 4: Simplify right side
    303,477.80x = 57,341,963,397.21
  5. Step 5: Solve for x
    x = 57,341,963,397.21/303,477.80
  6. Step 6: Final answer
    x = 188,949.45

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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.