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Finding the Fourth Proportional to 304,780.20, 456,392.70 and 242,572.20

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Solution

The fourth proportional to 304,780.20, 456,392.70 and 242,572.20 is: 363,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,780.20 : 456,392.70 = 242,572.20 : x
  2. Step 2: Convert to fraction form
    304,780.20/456,392.70 = 242,572.20/x
  3. Step 3: Cross multiply
    304,780.20x = 456,392.70 × 242,572.20
  4. Step 4: Simplify right side
    304,780.20x = 110,708,181,302.94
  5. Step 5: Solve for x
    x = 110,708,181,302.94/304,780.20
  6. Step 6: Final answer
    x = 363,239.41

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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.