Home / 318,709.42-439,811.03-180,914.07

Finding the Fourth Proportional to 318,709.42, 439,811.03 and 180,914.07

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Solution

The fourth proportional to 318,709.42, 439,811.03 and 180,914.07 is: 249,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,709.42 : 439,811.03 = 180,914.07 : x
  2. Step 2: Convert to fraction form
    318,709.42/439,811.03 = 180,914.07/x
  3. Step 3: Cross multiply
    318,709.42x = 439,811.03 × 180,914.07
  4. Step 4: Simplify right side
    318,709.42x = 79,568,005,569.77
  5. Step 5: Solve for x
    x = 79,568,005,569.77/318,709.42
  6. Step 6: Final answer
    x = 249,656.90

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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.