Home / 251,925.50-347,644.32-138,726.38

Finding the Fourth Proportional to 251,925.50, 347,644.32 and 138,726.38

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Solution

The fourth proportional to 251,925.50, 347,644.32 and 138,726.38 is: 191,435.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,925.50 : 347,644.32 = 138,726.38 : x
  2. Step 2: Convert to fraction form
    251,925.50/347,644.32 = 138,726.38/x
  3. Step 3: Cross multiply
    251,925.50x = 347,644.32 × 138,726.38
  4. Step 4: Simplify right side
    251,925.50x = 48,227,438,041.16
  5. Step 5: Solve for x
    x = 48,227,438,041.16/251,925.50
  6. Step 6: Final answer
    x = 191,435.32

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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.