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Finding the Fourth Proportional to 368,215.89, 508,133.10 and 207,070.89

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Solution

The fourth proportional to 368,215.89, 508,133.10 and 207,070.89 is: 285,755.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,215.89 : 508,133.10 = 207,070.89 : x
  2. Step 2: Convert to fraction form
    368,215.89/508,133.10 = 207,070.89/x
  3. Step 3: Cross multiply
    368,215.89x = 508,133.10 × 207,070.89
  4. Step 4: Simplify right side
    368,215.89x = 105,219,573,255.46
  5. Step 5: Solve for x
    x = 105,219,573,255.46/368,215.89
  6. Step 6: Final answer
    x = 285,755.11

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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.