Home / 385,542.18-531,984.73-242,200.71

Finding the Fourth Proportional to 385,542.18, 531,984.73 and 242,200.71

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Solution

The fourth proportional to 385,542.18, 531,984.73 and 242,200.71 is: 334,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,542.18 : 531,984.73 = 242,200.71 : x
  2. Step 2: Convert to fraction form
    385,542.18/531,984.73 = 242,200.71/x
  3. Step 3: Cross multiply
    385,542.18x = 531,984.73 × 242,200.71
  4. Step 4: Simplify right side
    385,542.18x = 128,847,079,315.16
  5. Step 5: Solve for x
    x = 128,847,079,315.16/385,542.18
  6. Step 6: Final answer
    x = 334,197.10

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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.