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Finding the Fourth Proportional to 368,897.66, 509,080.50 and 207,755.45

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Solution

The fourth proportional to 368,897.66, 509,080.50 and 207,755.45 is: 286,703.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,897.66 : 509,080.50 = 207,755.45 : x
  2. Step 2: Convert to fraction form
    368,897.66/509,080.50 = 207,755.45/x
  3. Step 3: Cross multiply
    368,897.66x = 509,080.50 × 207,755.45
  4. Step 4: Simplify right side
    368,897.66x = 105,764,248,363.73
  5. Step 5: Solve for x
    x = 105,764,248,363.73/368,897.66
  6. Step 6: Final answer
    x = 286,703.49

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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.