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Finding the Fourth Proportional to 253,890.70, 380,726.70 and 127,482.10

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Solution

The fourth proportional to 253,890.70, 380,726.70 and 127,482.10 is: 191,168.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,890.70 : 380,726.70 = 127,482.10 : x
  2. Step 2: Convert to fraction form
    253,890.70/380,726.70 = 127,482.10/x
  3. Step 3: Cross multiply
    253,890.70x = 380,726.70 × 127,482.10
  4. Step 4: Simplify right side
    253,890.70x = 48,535,839,242.07
  5. Step 5: Solve for x
    x = 48,535,839,242.07/253,890.70
  6. Step 6: Final answer
    x = 191,168.24

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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.