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Finding the Fourth Proportional to 356,783.52, 535,242.08 and 290,801.76

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Solution

The fourth proportional to 356,783.52, 535,242.08 and 290,801.76 is: 436,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,783.52 : 535,242.08 = 290,801.76 : x
  2. Step 2: Convert to fraction form
    356,783.52/535,242.08 = 290,801.76/x
  3. Step 3: Cross multiply
    356,783.52x = 535,242.08 × 290,801.76
  4. Step 4: Simplify right side
    356,783.52x = 155,649,338,890.06
  5. Step 5: Solve for x
    x = 155,649,338,890.06/356,783.52
  6. Step 6: Final answer
    x = 436,257.09

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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.