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Finding the Fourth Proportional to 272,591, 376,167.19 and 151,729.18

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Solution

The fourth proportional to 272,591, 376,167.19 and 151,729.18 is: 209,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,591 : 376,167.19 = 151,729.18 : x
  2. Step 2: Convert to fraction form
    272,591/376,167.19 = 151,729.18/x
  3. Step 3: Cross multiply
    272,591x = 376,167.19 × 151,729.18
  4. Step 4: Simplify right side
    272,591x = 57,075,539,281.60
  5. Step 5: Solve for x
    x = 57,075,539,281.60/272,591
  6. Step 6: Final answer
    x = 209,381.60

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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.