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Finding the Fourth Proportional to 321,877.10, 482,815.65 and 202,904.30

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Solution

The fourth proportional to 321,877.10, 482,815.65 and 202,904.30 is: 304,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,877.10 : 482,815.65 = 202,904.30 : x
  2. Step 2: Convert to fraction form
    321,877.10/482,815.65 = 202,904.30/x
  3. Step 3: Cross multiply
    321,877.10x = 482,815.65 × 202,904.30
  4. Step 4: Simplify right side
    321,877.10x = 97,965,371,492.30
  5. Step 5: Solve for x
    x = 97,965,371,492.30/321,877.10
  6. Step 6: Final answer
    x = 304,356.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.