Home / 280,908.37-421,275.07-93,876.13

Finding the Fourth Proportional to 280,908.37, 421,275.07 and 93,876.13

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Solution

The fourth proportional to 280,908.37, 421,275.07 and 93,876.13 is: 140,784.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,908.37 : 421,275.07 = 93,876.13 : x
  2. Step 2: Convert to fraction form
    280,908.37/421,275.07 = 93,876.13/x
  3. Step 3: Cross multiply
    280,908.37x = 421,275.07 × 93,876.13
  4. Step 4: Simplify right side
    280,908.37x = 39,547,670,661.32
  5. Step 5: Solve for x
    x = 39,547,670,661.32/280,908.37
  6. Step 6: Final answer
    x = 140,784.95

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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.