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Finding the Fourth Proportional to 304,423.20, 427,125.60 and 304,423.20

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Solution

The fourth proportional to 304,423.20, 427,125.60 and 304,423.20 is: 427,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,423.20 : 427,125.60 = 304,423.20 : x
  2. Step 2: Convert to fraction form
    304,423.20/427,125.60 = 304,423.20/x
  3. Step 3: Cross multiply
    304,423.20x = 427,125.60 × 304,423.20
  4. Step 4: Simplify right side
    304,423.20x = 130,026,941,953.92
  5. Step 5: Solve for x
    x = 130,026,941,953.92/304,423.20
  6. Step 6: Final answer
    x = 427,125.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.