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Finding the Fourth Proportional to 181,354.71, 250,266.18 and 100,780.77

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Solution

The fourth proportional to 181,354.71, 250,266.18 and 100,780.77 is: 139,075.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,354.71 : 250,266.18 = 100,780.77 : x
  2. Step 2: Convert to fraction form
    181,354.71/250,266.18 = 100,780.77/x
  3. Step 3: Cross multiply
    181,354.71x = 250,266.18 × 100,780.77
  4. Step 4: Simplify right side
    181,354.71x = 25,222,018,325.36
  5. Step 5: Solve for x
    x = 25,222,018,325.36/181,354.71
  6. Step 6: Final answer
    x = 139,075.62

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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.