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Finding the Fourth Proportional to 272,396.79, 375,900.71 and 157,659.57

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Solution

The fourth proportional to 272,396.79, 375,900.71 and 157,659.57 is: 217,566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,396.79 : 375,900.71 = 157,659.57 : x
  2. Step 2: Convert to fraction form
    272,396.79/375,900.71 = 157,659.57/x
  3. Step 3: Cross multiply
    272,396.79x = 375,900.71 × 157,659.57
  4. Step 4: Simplify right side
    272,396.79x = 59,264,343,513.00
  5. Step 5: Solve for x
    x = 59,264,343,513.00/272,396.79
  6. Step 6: Final answer
    x = 217,566.23

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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.