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Finding the Fourth Proportional to 268,001.72, 402,002.14 and 208,881.72

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Solution

The fourth proportional to 268,001.72, 402,002.14 and 208,881.72 is: 313,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,001.72 : 402,002.14 = 208,881.72 : x
  2. Step 2: Convert to fraction form
    268,001.72/402,002.14 = 208,881.72/x
  3. Step 3: Cross multiply
    268,001.72x = 402,002.14 × 208,881.72
  4. Step 4: Simplify right side
    268,001.72x = 83,970,898,446.88
  5. Step 5: Solve for x
    x = 83,970,898,446.88/268,001.72
  6. Step 6: Final answer
    x = 313,322.24

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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.