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Finding the Fourth Proportional to 272,510.31, 375,742.56 and 186,510.79

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Solution

The fourth proportional to 272,510.31, 375,742.56 and 186,510.79 is: 257,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,510.31 : 375,742.56 = 186,510.79 : x
  2. Step 2: Convert to fraction form
    272,510.31/375,742.56 = 186,510.79/x
  3. Step 3: Cross multiply
    272,510.31x = 375,742.56 × 186,510.79
  4. Step 4: Simplify right side
    272,510.31x = 70,080,041,702.22
  5. Step 5: Solve for x
    x = 70,080,041,702.22/272,510.31
  6. Step 6: Final answer
    x = 257,164.74

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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.