Home / 226,232.15-312,219.63-128,132.84

Finding the Fourth Proportional to 226,232.15, 312,219.63 and 128,132.84

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Solution

The fourth proportional to 226,232.15, 312,219.63 and 128,132.84 is: 176,834.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,232.15 : 312,219.63 = 128,132.84 : x
  2. Step 2: Convert to fraction form
    226,232.15/312,219.63 = 128,132.84/x
  3. Step 3: Cross multiply
    226,232.15x = 312,219.63 × 128,132.84
  4. Step 4: Simplify right side
    226,232.15x = 40,005,588,887.17
  5. Step 5: Solve for x
    x = 40,005,588,887.17/226,232.15
  6. Step 6: Final answer
    x = 176,834.23

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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.