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Finding the Fourth Proportional to 312,008.10, 468,012.15 and 101,643.30

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Solution

The fourth proportional to 312,008.10, 468,012.15 and 101,643.30 is: 152,464.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,008.10 : 468,012.15 = 101,643.30 : x
  2. Step 2: Convert to fraction form
    312,008.10/468,012.15 = 101,643.30/x
  3. Step 3: Cross multiply
    312,008.10x = 468,012.15 × 101,643.30
  4. Step 4: Simplify right side
    312,008.10x = 47,570,299,366.10
  5. Step 5: Solve for x
    x = 47,570,299,366.10/312,008.10
  6. Step 6: Final answer
    x = 152,464.95

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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.