Home / 318,437.85-439,445.03-175,206.81

Finding the Fourth Proportional to 318,437.85, 439,445.03 and 175,206.81

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Solution

The fourth proportional to 318,437.85, 439,445.03 and 175,206.81 is: 241,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,437.85 : 439,445.03 = 175,206.81 : x
  2. Step 2: Convert to fraction form
    318,437.85/439,445.03 = 175,206.81/x
  3. Step 3: Cross multiply
    318,437.85x = 439,445.03 × 175,206.81
  4. Step 4: Simplify right side
    318,437.85x = 76,993,762,314.67
  5. Step 5: Solve for x
    x = 76,993,762,314.67/318,437.85
  6. Step 6: Final answer
    x = 241,785.84

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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.