Home / 378,013.04-521,657.96-208,247.16

Finding the Fourth Proportional to 378,013.04, 521,657.96 and 208,247.16

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Solution

The fourth proportional to 378,013.04, 521,657.96 and 208,247.16 is: 287,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,013.04 : 521,657.96 = 208,247.16 : x
  2. Step 2: Convert to fraction form
    378,013.04/521,657.96 = 208,247.16/x
  3. Step 3: Cross multiply
    378,013.04x = 521,657.96 × 208,247.16
  4. Step 4: Simplify right side
    378,013.04x = 108,633,789,182.01
  5. Step 5: Solve for x
    x = 108,633,789,182.01/378,013.04
  6. Step 6: Final answer
    x = 287,381.07

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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.