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Finding the Fourth Proportional to 371,303.28, 512,355.84 and 207,936.96

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Solution

The fourth proportional to 371,303.28, 512,355.84 and 207,936.96 is: 286,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,303.28 : 512,355.84 = 207,936.96 : x
  2. Step 2: Convert to fraction form
    371,303.28/512,355.84 = 207,936.96/x
  3. Step 3: Cross multiply
    371,303.28x = 512,355.84 × 207,936.96
  4. Step 4: Simplify right side
    371,303.28x = 106,537,715,807.85
  5. Step 5: Solve for x
    x = 106,537,715,807.85/371,303.28
  6. Step 6: Final answer
    x = 286,929.10

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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.