Home / 317,566.18-438,276.20-181,612.78

Finding the Fourth Proportional to 317,566.18, 438,276.20 and 181,612.78

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Solution

The fourth proportional to 317,566.18, 438,276.20 and 181,612.78 is: 250,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,566.18 : 438,276.20 = 181,612.78 : x
  2. Step 2: Convert to fraction form
    317,566.18/438,276.20 = 181,612.78/x
  3. Step 3: Cross multiply
    317,566.18x = 438,276.20 × 181,612.78
  4. Step 4: Simplify right side
    317,566.18x = 79,596,559,089.84
  5. Step 5: Solve for x
    x = 79,596,559,089.84/317,566.18
  6. Step 6: Final answer
    x = 250,645.58

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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.