Home / 277,981.56-416,637.02-128,016.52

Finding the Fourth Proportional to 277,981.56, 416,637.02 and 128,016.52

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Solution

The fourth proportional to 277,981.56, 416,637.02 and 128,016.52 is: 191,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,981.56 : 416,637.02 = 128,016.52 : x
  2. Step 2: Convert to fraction form
    277,981.56/416,637.02 = 128,016.52/x
  3. Step 3: Cross multiply
    277,981.56x = 416,637.02 × 128,016.52
  4. Step 4: Simplify right side
    277,981.56x = 53,336,421,403.57
  5. Step 5: Solve for x
    x = 53,336,421,403.57/277,981.56
  6. Step 6: Final answer
    x = 191,870.36

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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.