Home / 399,180.66-549,933.57-278,102.94

Finding the Fourth Proportional to 399,180.66, 549,933.57 and 278,102.94

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Solution

The fourth proportional to 399,180.66, 549,933.57 and 278,102.94 is: 383,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,180.66 : 549,933.57 = 278,102.94 : x
  2. Step 2: Convert to fraction form
    399,180.66/549,933.57 = 278,102.94/x
  3. Step 3: Cross multiply
    399,180.66x = 549,933.57 × 278,102.94
  4. Step 4: Simplify right side
    399,180.66x = 152,938,142,621.70
  5. Step 5: Solve for x
    x = 152,938,142,621.70/399,180.66
  6. Step 6: Final answer
    x = 383,130.14

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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.