Home / 343,315.20-515,115.06-185,358

Finding the Fourth Proportional to 343,315.20, 515,115.06 and 185,358

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Solution

The fourth proportional to 343,315.20, 515,115.06 and 185,358 is: 278,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,315.20 : 515,115.06 = 185,358 : x
  2. Step 2: Convert to fraction form
    343,315.20/515,115.06 = 185,358/x
  3. Step 3: Cross multiply
    343,315.20x = 515,115.06 × 185,358
  4. Step 4: Simplify right side
    343,315.20x = 95,480,697,291.48
  5. Step 5: Solve for x
    x = 95,480,697,291.48/343,315.20
  6. Step 6: Final answer
    x = 278,113.81

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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.