Home / 214,455.04-321,838.08-121,143.04

Finding the Fourth Proportional to 214,455.04, 321,838.08 and 121,143.04

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Solution

The fourth proportional to 214,455.04, 321,838.08 and 121,143.04 is: 181,802.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,455.04 : 321,838.08 = 121,143.04 : x
  2. Step 2: Convert to fraction form
    214,455.04/321,838.08 = 121,143.04/x
  3. Step 3: Cross multiply
    214,455.04x = 321,838.08 × 121,143.04
  4. Step 4: Simplify right side
    214,455.04x = 38,988,443,398.96
  5. Step 5: Solve for x
    x = 38,988,443,398.96/214,455.04
  6. Step 6: Final answer
    x = 181,802.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.