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Finding the Fourth Proportional to 304,841.40, 457,262.10 and 178,870.20

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Solution

The fourth proportional to 304,841.40, 457,262.10 and 178,870.20 is: 268,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,841.40 : 457,262.10 = 178,870.20 : x
  2. Step 2: Convert to fraction form
    304,841.40/457,262.10 = 178,870.20/x
  3. Step 3: Cross multiply
    304,841.40x = 457,262.10 × 178,870.20
  4. Step 4: Simplify right side
    304,841.40x = 81,790,563,279.42
  5. Step 5: Solve for x
    x = 81,790,563,279.42/304,841.40
  6. Step 6: Final answer
    x = 268,305.30

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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.