Home / 306,838.03-423,218.37-204,812.05

Finding the Fourth Proportional to 306,838.03, 423,218.37 and 204,812.05

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Solution

The fourth proportional to 306,838.03, 423,218.37 and 204,812.05 is: 282,495.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,838.03 : 423,218.37 = 204,812.05 : x
  2. Step 2: Convert to fraction form
    306,838.03/423,218.37 = 204,812.05/x
  3. Step 3: Cross multiply
    306,838.03x = 423,218.37 × 204,812.05
  4. Step 4: Simplify right side
    306,838.03x = 86,680,221,957.36
  5. Step 5: Solve for x
    x = 86,680,221,957.36/306,838.03
  6. Step 6: Final answer
    x = 282,495.04

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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.