Home / 251,514.24-347,095.20-138,342.72

Finding the Fourth Proportional to 251,514.24, 347,095.20 and 138,342.72

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Solution

The fourth proportional to 251,514.24, 347,095.20 and 138,342.72 is: 190,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,514.24 : 347,095.20 = 138,342.72 : x
  2. Step 2: Convert to fraction form
    251,514.24/347,095.20 = 138,342.72/x
  3. Step 3: Cross multiply
    251,514.24x = 347,095.20 × 138,342.72
  4. Step 4: Simplify right side
    251,514.24x = 48,018,094,066.94
  5. Step 5: Solve for x
    x = 48,018,094,066.94/251,514.24
  6. Step 6: Final answer
    x = 190,916.01

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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.