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Finding the Fourth Proportional to 315,276.40, 472,914.60 and 296,844.40

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Solution

The fourth proportional to 315,276.40, 472,914.60 and 296,844.40 is: 445,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,276.40 : 472,914.60 = 296,844.40 : x
  2. Step 2: Convert to fraction form
    315,276.40/472,914.60 = 296,844.40/x
  3. Step 3: Cross multiply
    315,276.40x = 472,914.60 × 296,844.40
  4. Step 4: Simplify right side
    315,276.40x = 140,382,050,688.24
  5. Step 5: Solve for x
    x = 140,382,050,688.24/315,276.40
  6. Step 6: Final answer
    x = 445,266.60

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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.