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Finding the Fourth Proportional to 360,353.73, 497,285.37 and 207,421.95

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Solution

The fourth proportional to 360,353.73, 497,285.37 and 207,421.95 is: 286,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,353.73 : 497,285.37 = 207,421.95 : x
  2. Step 2: Convert to fraction form
    360,353.73/497,285.37 = 207,421.95/x
  3. Step 3: Cross multiply
    360,353.73x = 497,285.37 × 207,421.95
  4. Step 4: Simplify right side
    360,353.73x = 103,147,901,151.87
  5. Step 5: Solve for x
    x = 103,147,901,151.87/360,353.73
  6. Step 6: Final answer
    x = 286,240.69

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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.