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Finding the Fourth Proportional to 272,307.89, 375,756.12 and 151,429.68

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Solution

The fourth proportional to 272,307.89, 375,756.12 and 151,429.68 is: 208,956.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,307.89 : 375,756.12 = 151,429.68 : x
  2. Step 2: Convert to fraction form
    272,307.89/375,756.12 = 151,429.68/x
  3. Step 3: Cross multiply
    272,307.89x = 375,756.12 × 151,429.68
  4. Step 4: Simplify right side
    272,307.89x = 56,900,629,009.64
  5. Step 5: Solve for x
    x = 56,900,629,009.64/272,307.89
  6. Step 6: Final answer
    x = 208,956.96

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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.