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Finding the Fourth Proportional to 456,680.72, 630,203.81 and 252,740.21

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Solution

The fourth proportional to 456,680.72, 630,203.81 and 252,740.21 is: 348,772.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,680.72 : 630,203.81 = 252,740.21 : x
  2. Step 2: Convert to fraction form
    456,680.72/630,203.81 = 252,740.21/x
  3. Step 3: Cross multiply
    456,680.72x = 630,203.81 × 252,740.21
  4. Step 4: Simplify right side
    456,680.72x = 159,277,838,867.48
  5. Step 5: Solve for x
    x = 159,277,838,867.48/456,680.72
  6. Step 6: Final answer
    x = 348,772.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.