Home / 229,384.13-316,550.10-128,782.13

Finding the Fourth Proportional to 229,384.13, 316,550.10 and 128,782.13

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Solution

The fourth proportional to 229,384.13, 316,550.10 and 128,782.13 is: 177,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,384.13 : 316,550.10 = 128,782.13 : x
  2. Step 2: Convert to fraction form
    229,384.13/316,550.10 = 128,782.13/x
  3. Step 3: Cross multiply
    229,384.13x = 316,550.10 × 128,782.13
  4. Step 4: Simplify right side
    229,384.13x = 40,765,994,546.96
  5. Step 5: Solve for x
    x = 40,765,994,546.96/229,384.13
  6. Step 6: Final answer
    x = 177,719.34

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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.