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Finding the Fourth Proportional to 253,550.15, 349,897.98 and 137,263.71

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Solution

The fourth proportional to 253,550.15, 349,897.98 and 137,263.71 is: 189,423.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,550.15 : 349,897.98 = 137,263.71 : x
  2. Step 2: Convert to fraction form
    253,550.15/349,897.98 = 137,263.71/x
  3. Step 3: Cross multiply
    253,550.15x = 349,897.98 × 137,263.71
  4. Step 4: Simplify right side
    253,550.15x = 48,028,295,911.05
  5. Step 5: Solve for x
    x = 48,028,295,911.05/253,550.15
  6. Step 6: Final answer
    x = 189,423.26

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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.