Home / 251,108.80-346,514.83-137,931.55

Finding the Fourth Proportional to 251,108.80, 346,514.83 and 137,931.55

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Solution

The fourth proportional to 251,108.80, 346,514.83 and 137,931.55 is: 190,337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,108.80 : 346,514.83 = 137,931.55 : x
  2. Step 2: Convert to fraction form
    251,108.80/346,514.83 = 137,931.55/x
  3. Step 3: Cross multiply
    251,108.80x = 346,514.83 × 137,931.55
  4. Step 4: Simplify right side
    251,108.80x = 47,795,327,599.89
  5. Step 5: Solve for x
    x = 47,795,327,599.89/251,108.80
  6. Step 6: Final answer
    x = 190,337.13

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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.