Home / 355,564.12-490,802.04-204,721.24

Finding the Fourth Proportional to 355,564.12, 490,802.04 and 204,721.24

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Solution

The fourth proportional to 355,564.12, 490,802.04 and 204,721.24 is: 282,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,564.12 : 490,802.04 = 204,721.24 : x
  2. Step 2: Convert to fraction form
    355,564.12/490,802.04 = 204,721.24/x
  3. Step 3: Cross multiply
    355,564.12x = 490,802.04 × 204,721.24
  4. Step 4: Simplify right side
    355,564.12x = 100,477,602,223.33
  5. Step 5: Solve for x
    x = 100,477,602,223.33/355,564.12
  6. Step 6: Final answer
    x = 282,586.45

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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.