Home / 233,089.38-349,685.28-138,406.05

Finding the Fourth Proportional to 233,089.38, 349,685.28 and 138,406.05

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Solution

The fourth proportional to 233,089.38, 349,685.28 and 138,406.05 is: 207,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,089.38 : 349,685.28 = 138,406.05 : x
  2. Step 2: Convert to fraction form
    233,089.38/349,685.28 = 138,406.05/x
  3. Step 3: Cross multiply
    233,089.38x = 349,685.28 × 138,406.05
  4. Step 4: Simplify right side
    233,089.38x = 48,398,558,347.94
  5. Step 5: Solve for x
    x = 48,398,558,347.94/233,089.38
  6. Step 6: Final answer
    x = 207,639.48

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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.