Home / 330,574.12-456,379.63-252,903.65

Finding the Fourth Proportional to 330,574.12, 456,379.63 and 252,903.65

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Solution

The fourth proportional to 330,574.12, 456,379.63 and 252,903.65 is: 349,150.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,574.12 : 456,379.63 = 252,903.65 : x
  2. Step 2: Convert to fraction form
    330,574.12/456,379.63 = 252,903.65/x
  3. Step 3: Cross multiply
    330,574.12x = 456,379.63 × 252,903.65
  4. Step 4: Simplify right side
    330,574.12x = 115,420,071,298.49
  5. Step 5: Solve for x
    x = 115,420,071,298.49/330,574.12
  6. Step 6: Final answer
    x = 349,150.36

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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.