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Finding the Fourth Proportional to 315,252.30, 472,878.45 and 149,364.30

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Solution

The fourth proportional to 315,252.30, 472,878.45 and 149,364.30 is: 224,046.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,252.30 : 472,878.45 = 149,364.30 : x
  2. Step 2: Convert to fraction form
    315,252.30/472,878.45 = 149,364.30/x
  3. Step 3: Cross multiply
    315,252.30x = 472,878.45 × 149,364.30
  4. Step 4: Simplify right side
    315,252.30x = 70,631,158,669.34
  5. Step 5: Solve for x
    x = 70,631,158,669.34/315,252.30
  6. Step 6: Final answer
    x = 224,046.45

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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.