Home / 216,388.68-298,612-131,533.08

Finding the Fourth Proportional to 216,388.68, 298,612 and 131,533.08

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Solution

The fourth proportional to 216,388.68, 298,612 and 131,533.08 is: 181,512.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,388.68 : 298,612 = 131,533.08 : x
  2. Step 2: Convert to fraction form
    216,388.68/298,612 = 131,533.08/x
  3. Step 3: Cross multiply
    216,388.68x = 298,612 × 131,533.08
  4. Step 4: Simplify right side
    216,388.68x = 39,277,356,084.96
  5. Step 5: Solve for x
    x = 39,277,356,084.96/216,388.68
  6. Step 6: Final answer
    x = 181,512.99

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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.