Home / 378,054.02-521,714.22-208,288.14

Finding the Fourth Proportional to 378,054.02, 521,714.22 and 208,288.14

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Solution

The fourth proportional to 378,054.02, 521,714.22 and 208,288.14 is: 287,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,054.02 : 521,714.22 = 208,288.14 : x
  2. Step 2: Convert to fraction form
    378,054.02/521,714.22 = 208,288.14/x
  3. Step 3: Cross multiply
    378,054.02x = 521,714.22 × 208,288.14
  4. Step 4: Simplify right side
    378,054.02x = 108,666,884,495.35
  5. Step 5: Solve for x
    x = 108,666,884,495.35/378,054.02
  6. Step 6: Final answer
    x = 287,437.46

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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.