Home / 386,889.02-533,769.96-252,830.78

Finding the Fourth Proportional to 386,889.02, 533,769.96 and 252,830.78

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Solution

The fourth proportional to 386,889.02, 533,769.96 and 252,830.78 is: 348,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,889.02 : 533,769.96 = 252,830.78 : x
  2. Step 2: Convert to fraction form
    386,889.02/533,769.96 = 252,830.78/x
  3. Step 3: Cross multiply
    386,889.02x = 533,769.96 × 252,830.78
  4. Step 4: Simplify right side
    386,889.02x = 134,953,475,327.37
  5. Step 5: Solve for x
    x = 134,953,475,327.37/386,889.02
  6. Step 6: Final answer
    x = 348,817.02

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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.