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Finding the Fourth Proportional to 313,602.61, 432,757.73 and 177,633.82

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Solution

The fourth proportional to 313,602.61, 432,757.73 and 177,633.82 is: 245,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,602.61 : 432,757.73 = 177,633.82 : x
  2. Step 2: Convert to fraction form
    313,602.61/432,757.73 = 177,633.82/x
  3. Step 3: Cross multiply
    313,602.61x = 432,757.73 × 177,633.82
  4. Step 4: Simplify right side
    313,602.61x = 76,872,409,699.46
  5. Step 5: Solve for x
    x = 76,872,409,699.46/313,602.61
  6. Step 6: Final answer
    x = 245,126.82

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1.5x scale

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.