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Finding the Fourth Proportional to 308,237.04, 425,324.16 and 172,253.76

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Solution

The fourth proportional to 308,237.04, 425,324.16 and 172,253.76 is: 237,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,237.04 : 425,324.16 = 172,253.76 : x
  2. Step 2: Convert to fraction form
    308,237.04/425,324.16 = 172,253.76/x
  3. Step 3: Cross multiply
    308,237.04x = 425,324.16 × 172,253.76
  4. Step 4: Simplify right side
    308,237.04x = 73,263,685,778.84
  5. Step 5: Solve for x
    x = 73,263,685,778.84/308,237.04
  6. Step 6: Final answer
    x = 237,686.18

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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.