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Finding the Fourth Proportional to 317,089.58, 437,521.98 and 188,004.20

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Solution

The fourth proportional to 317,089.58, 437,521.98 and 188,004.20 is: 259,409.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,089.58 : 437,521.98 = 188,004.20 : x
  2. Step 2: Convert to fraction form
    317,089.58/437,521.98 = 188,004.20/x
  3. Step 3: Cross multiply
    317,089.58x = 437,521.98 × 188,004.20
  4. Step 4: Simplify right side
    317,089.58x = 82,255,967,644.71
  5. Step 5: Solve for x
    x = 82,255,967,644.71/317,089.58
  6. Step 6: Final answer
    x = 259,409.25

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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.