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Finding the Fourth Proportional to 273,990.04, 378,150.32 and 172,030.08

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Solution

The fourth proportional to 273,990.04, 378,150.32 and 172,030.08 is: 237,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,990.04 : 378,150.32 = 172,030.08 : x
  2. Step 2: Convert to fraction form
    273,990.04/378,150.32 = 172,030.08/x
  3. Step 3: Cross multiply
    273,990.04x = 378,150.32 × 172,030.08
  4. Step 4: Simplify right side
    273,990.04x = 65,053,229,801.63
  5. Step 5: Solve for x
    x = 65,053,229,801.63/273,990.04
  6. Step 6: Final answer
    x = 237,429.18

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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.