Home / 318,621.64-439,709.58-175,387.72

Finding the Fourth Proportional to 318,621.64, 439,709.58 and 175,387.72

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Solution

The fourth proportional to 318,621.64, 439,709.58 and 175,387.72 is: 242,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,621.64 : 439,709.58 = 175,387.72 : x
  2. Step 2: Convert to fraction form
    318,621.64/439,709.58 = 175,387.72/x
  3. Step 3: Cross multiply
    318,621.64x = 439,709.58 × 175,387.72
  4. Step 4: Simplify right side
    318,621.64x = 77,119,660,698.36
  5. Step 5: Solve for x
    x = 77,119,660,698.36/318,621.64
  6. Step 6: Final answer
    x = 242,041.50

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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.