Home / 223,780.48-308,823.78-137,789.09

Finding the Fourth Proportional to 223,780.48, 308,823.78 and 137,789.09

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Solution

The fourth proportional to 223,780.48, 308,823.78 and 137,789.09 is: 190,153.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,780.48 : 308,823.78 = 137,789.09 : x
  2. Step 2: Convert to fraction form
    223,780.48/308,823.78 = 137,789.09/x
  3. Step 3: Cross multiply
    223,780.48x = 308,823.78 × 137,789.09
  4. Step 4: Simplify right side
    223,780.48x = 42,552,547,616.56
  5. Step 5: Solve for x
    x = 42,552,547,616.56/223,780.48
  6. Step 6: Final answer
    x = 190,153.08

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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.