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Finding the Fourth Proportional to 304,319.70, 456,479.55 and 281,574.90

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Solution

The fourth proportional to 304,319.70, 456,479.55 and 281,574.90 is: 422,362.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,319.70 : 456,479.55 = 281,574.90 : x
  2. Step 2: Convert to fraction form
    304,319.70/456,479.55 = 281,574.90/x
  3. Step 3: Cross multiply
    304,319.70x = 456,479.55 × 281,574.90
  4. Step 4: Simplify right side
    304,319.70x = 128,533,183,643.30
  5. Step 5: Solve for x
    x = 128,533,183,643.30/304,319.70
  6. Step 6: Final answer
    x = 422,362.35

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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.