Home / 268,789.78-370,929.81-155,610.10

Finding the Fourth Proportional to 268,789.78, 370,929.81 and 155,610.10

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Solution

The fourth proportional to 268,789.78, 370,929.81 and 155,610.10 is: 214,741.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,789.78 : 370,929.81 = 155,610.10 : x
  2. Step 2: Convert to fraction form
    268,789.78/370,929.81 = 155,610.10/x
  3. Step 3: Cross multiply
    268,789.78x = 370,929.81 × 155,610.10
  4. Step 4: Simplify right side
    268,789.78x = 57,720,424,827.08
  5. Step 5: Solve for x
    x = 57,720,424,827.08/268,789.78
  6. Step 6: Final answer
    x = 214,741.89

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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.