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Finding the Fourth Proportional to 321,901.10, 482,851.65 and 202,928.30

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Solution

The fourth proportional to 321,901.10, 482,851.65 and 202,928.30 is: 304,392.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,901.10 : 482,851.65 = 202,928.30 : x
  2. Step 2: Convert to fraction form
    321,901.10/482,851.65 = 202,928.30/x
  3. Step 3: Cross multiply
    321,901.10x = 482,851.65 × 202,928.30
  4. Step 4: Simplify right side
    321,901.10x = 97,984,264,486.70
  5. Step 5: Solve for x
    x = 97,984,264,486.70/321,901.10
  6. Step 6: Final answer
    x = 304,392.45

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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.