Home / 320,421.68-442,184.20-175,228.12

Finding the Fourth Proportional to 320,421.68, 442,184.20 and 175,228.12

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Solution

The fourth proportional to 320,421.68, 442,184.20 and 175,228.12 is: 241,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,421.68 : 442,184.20 = 175,228.12 : x
  2. Step 2: Convert to fraction form
    320,421.68/442,184.20 = 175,228.12/x
  3. Step 3: Cross multiply
    320,421.68x = 442,184.20 × 175,228.12
  4. Step 4: Simplify right side
    320,421.68x = 77,483,106,059.70
  5. Step 5: Solve for x
    x = 77,483,106,059.70/320,421.68
  6. Step 6: Final answer
    x = 241,816.05

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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.