Home / 318,838.20-440,016.61-175,598.21

Finding the Fourth Proportional to 318,838.20, 440,016.61 and 175,598.21

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Solution

The fourth proportional to 318,838.20, 440,016.61 and 175,598.21 is: 242,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,838.20 : 440,016.61 = 175,598.21 : x
  2. Step 2: Convert to fraction form
    318,838.20/440,016.61 = 175,598.21/x
  3. Step 3: Cross multiply
    318,838.20x = 440,016.61 × 175,598.21
  4. Step 4: Simplify right side
    318,838.20x = 77,266,126,886.19
  5. Step 5: Solve for x
    x = 77,266,126,886.19/318,838.20
  6. Step 6: Final answer
    x = 242,336.48

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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.