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Finding the Fourth Proportional to 253,497.40, 349,914.47 and 156,775.30

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Solution

The fourth proportional to 253,497.40, 349,914.47 and 156,775.30 is: 216,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,497.40 : 349,914.47 = 156,775.30 : x
  2. Step 2: Convert to fraction form
    253,497.40/349,914.47 = 156,775.30/x
  3. Step 3: Cross multiply
    253,497.40x = 349,914.47 × 156,775.30
  4. Step 4: Simplify right side
    253,497.40x = 54,857,944,349.93
  5. Step 5: Solve for x
    x = 54,857,944,349.93/253,497.40
  6. Step 6: Final answer
    x = 216,404.37

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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.