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Finding the Fourth Proportional to 288,913.30, 432,851.55 and 247,441.30

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Solution

The fourth proportional to 288,913.30, 432,851.55 and 247,441.30 is: 370,717.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,913.30 : 432,851.55 = 247,441.30 : x
  2. Step 2: Convert to fraction form
    288,913.30/432,851.55 = 247,441.30/x
  3. Step 3: Cross multiply
    288,913.30x = 432,851.55 × 247,441.30
  4. Step 4: Simplify right side
    288,913.30x = 107,105,350,239.02
  5. Step 5: Solve for x
    x = 107,105,350,239.02/288,913.30
  6. Step 6: Final answer
    x = 370,717.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.