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Finding the Fourth Proportional to 439,571, 606,607.98 and 238,367.16

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Solution

The fourth proportional to 439,571, 606,607.98 and 238,367.16 is: 328,946.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,571 : 606,607.98 = 238,367.16 : x
  2. Step 2: Convert to fraction form
    439,571/606,607.98 = 238,367.16/x
  3. Step 3: Cross multiply
    439,571x = 606,607.98 × 238,367.16
  4. Step 4: Simplify right side
    439,571x = 144,595,421,425.94
  5. Step 5: Solve for x
    x = 144,595,421,425.94/439,571
  6. Step 6: Final answer
    x = 328,946.68

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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.