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Finding the Fourth Proportional to 308,016.06, 425,020.15 and 172,032.66

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Solution

The fourth proportional to 308,016.06, 425,020.15 and 172,032.66 is: 237,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,016.06 : 425,020.15 = 172,032.66 : x
  2. Step 2: Convert to fraction form
    308,016.06/425,020.15 = 172,032.66/x
  3. Step 3: Cross multiply
    308,016.06x = 425,020.15 × 172,032.66
  4. Step 4: Simplify right side
    308,016.06x = 73,117,343,972.84
  5. Step 5: Solve for x
    x = 73,117,343,972.84/308,016.06
  6. Step 6: Final answer
    x = 237,381.60

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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.