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Finding the Fourth Proportional to 317,362.61, 437,845.46 and 208,525.50

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Solution

The fourth proportional to 317,362.61, 437,845.46 and 208,525.50 is: 287,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,362.61 : 437,845.46 = 208,525.50 : x
  2. Step 2: Convert to fraction form
    317,362.61/437,845.46 = 208,525.50/x
  3. Step 3: Cross multiply
    317,362.61x = 437,845.46 × 208,525.50
  4. Step 4: Simplify right side
    317,362.61x = 91,301,942,426.60
  5. Step 5: Solve for x
    x = 91,301,942,426.60/317,362.61
  6. Step 6: Final answer
    x = 287,689.66

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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.