Home / 272,921.81-407,463.69-208,543.03

Finding the Fourth Proportional to 272,921.81, 407,463.69 and 208,543.03

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Solution

The fourth proportional to 272,921.81, 407,463.69 and 208,543.03 is: 311,348.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,921.81 : 407,463.69 = 208,543.03 : x
  2. Step 2: Convert to fraction form
    272,921.81/407,463.69 = 208,543.03/x
  3. Step 3: Cross multiply
    272,921.81x = 407,463.69 × 208,543.03
  4. Step 4: Simplify right side
    272,921.81x = 84,973,712,527.58
  5. Step 5: Solve for x
    x = 84,973,712,527.58/272,921.81
  6. Step 6: Final answer
    x = 311,348.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.