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Finding the Fourth Proportional to 369,642.54, 510,112.58 and 208,500.80

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Solution

The fourth proportional to 369,642.54, 510,112.58 and 208,500.80 is: 287,734.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,642.54 : 510,112.58 = 208,500.80 : x
  2. Step 2: Convert to fraction form
    369,642.54/510,112.58 = 208,500.80/x
  3. Step 3: Cross multiply
    369,642.54x = 510,112.58 × 208,500.80
  4. Step 4: Simplify right side
    369,642.54x = 106,358,877,427.00
  5. Step 5: Solve for x
    x = 106,358,877,427.00/369,642.54
  6. Step 6: Final answer
    x = 287,734.41

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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.