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Finding the Fourth Proportional to 331,382.30, 457,307.52 and 180,479.30

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Solution

The fourth proportional to 331,382.30, 457,307.52 and 180,479.30 is: 249,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,382.30 : 457,307.52 = 180,479.30 : x
  2. Step 2: Convert to fraction form
    331,382.30/457,307.52 = 180,479.30/x
  3. Step 3: Cross multiply
    331,382.30x = 457,307.52 × 180,479.30
  4. Step 4: Simplify right side
    331,382.30x = 82,534,541,094.34
  5. Step 5: Solve for x
    x = 82,534,541,094.34/331,382.30
  6. Step 6: Final answer
    x = 249,061.40

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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.