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Finding the Fourth Proportional to 180,347.51, 248,883.54 and 99,780.76

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Solution

The fourth proportional to 180,347.51, 248,883.54 and 99,780.76 is: 137,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,347.51 : 248,883.54 = 99,780.76 : x
  2. Step 2: Convert to fraction form
    180,347.51/248,883.54 = 99,780.76/x
  3. Step 3: Cross multiply
    180,347.51x = 248,883.54 × 99,780.76
  4. Step 4: Simplify right side
    180,347.51x = 24,833,788,709.62
  5. Step 5: Solve for x
    x = 24,833,788,709.62/180,347.51
  6. Step 6: Final answer
    x = 137,699.65

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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.