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Finding the Fourth Proportional to 259,655.52, 389,502.98 and 70,113.13

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Solution

The fourth proportional to 259,655.52, 389,502.98 and 70,113.13 is: 105,175.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,655.52 : 389,502.98 = 70,113.13 : x
  2. Step 2: Convert to fraction form
    259,655.52/389,502.98 = 70,113.13/x
  3. Step 3: Cross multiply
    259,655.52x = 389,502.98 × 70,113.13
  4. Step 4: Simplify right side
    259,655.52x = 27,309,270,774.05
  5. Step 5: Solve for x
    x = 27,309,270,774.05/259,655.52
  6. Step 6: Final answer
    x = 105,175.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.