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Finding the Fourth Proportional to 304,815.64, 457,518.68 and 147,154.80

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Solution

The fourth proportional to 304,815.64, 457,518.68 and 147,154.80 is: 220,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,815.64 : 457,518.68 = 147,154.80 : x
  2. Step 2: Convert to fraction form
    304,815.64/457,518.68 = 147,154.80/x
  3. Step 3: Cross multiply
    304,815.64x = 457,518.68 × 147,154.80
  4. Step 4: Simplify right side
    304,815.64x = 67,326,069,851.66
  5. Step 5: Solve for x
    x = 67,326,069,851.66/304,815.64
  6. Step 6: Final answer
    x = 220,874.72

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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.