Home / 318,186.77-439,106.06-173,002.30

Finding the Fourth Proportional to 318,186.77, 439,106.06 and 173,002.30

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Solution

The fourth proportional to 318,186.77, 439,106.06 and 173,002.30 is: 238,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,186.77 : 439,106.06 = 173,002.30 : x
  2. Step 2: Convert to fraction form
    318,186.77/439,106.06 = 173,002.30/x
  3. Step 3: Cross multiply
    318,186.77x = 439,106.06 × 173,002.30
  4. Step 4: Simplify right side
    318,186.77x = 75,966,357,658.68
  5. Step 5: Solve for x
    x = 75,966,357,658.68/318,186.77
  6. Step 6: Final answer
    x = 238,747.70

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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.