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Finding the Fourth Proportional to 251,437.38, 377,037.66 and 91,400.77

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Solution

The fourth proportional to 251,437.38, 377,037.66 and 91,400.77 is: 137,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,437.38 : 377,037.66 = 91,400.77 : x
  2. Step 2: Convert to fraction form
    251,437.38/377,037.66 = 91,400.77/x
  3. Step 3: Cross multiply
    251,437.38x = 377,037.66 × 91,400.77
  4. Step 4: Simplify right side
    251,437.38x = 34,461,531,409.36
  5. Step 5: Solve for x
    x = 34,461,531,409.36/251,437.38
  6. Step 6: Final answer
    x = 137,058.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.