Home / 318,340.13-439,300.74-180,544.34

Finding the Fourth Proportional to 318,340.13, 439,300.74 and 180,544.34

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Solution

The fourth proportional to 318,340.13, 439,300.74 and 180,544.34 is: 249,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,340.13 : 439,300.74 = 180,544.34 : x
  2. Step 2: Convert to fraction form
    318,340.13/439,300.74 = 180,544.34/x
  3. Step 3: Cross multiply
    318,340.13x = 439,300.74 × 180,544.34
  4. Step 4: Simplify right side
    318,340.13x = 79,313,262,164.81
  5. Step 5: Solve for x
    x = 79,313,262,164.81/318,340.13
  6. Step 6: Final answer
    x = 249,146.29

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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.