Home / 318,742.56-439,880.90-180,931.19

Finding the Fourth Proportional to 318,742.56, 439,880.90 and 180,931.19

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Solution

The fourth proportional to 318,742.56, 439,880.90 and 180,931.19 is: 249,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,742.56 : 439,880.90 = 180,931.19 : x
  2. Step 2: Convert to fraction form
    318,742.56/439,880.90 = 180,931.19/x
  3. Step 3: Cross multiply
    318,742.56x = 439,880.90 × 180,931.19
  4. Step 4: Simplify right side
    318,742.56x = 79,588,171,591.21
  5. Step 5: Solve for x
    x = 79,588,171,591.21/318,742.56
  6. Step 6: Final answer
    x = 249,694.21

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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.