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Finding the Fourth Proportional to 250,692.96, 375,918.48 and 145,538.40

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Solution

The fourth proportional to 250,692.96, 375,918.48 and 145,538.40 is: 218,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,692.96 : 375,918.48 = 145,538.40 : x
  2. Step 2: Convert to fraction form
    250,692.96/375,918.48 = 145,538.40/x
  3. Step 3: Cross multiply
    250,692.96x = 375,918.48 × 145,538.40
  4. Step 4: Simplify right side
    250,692.96x = 54,710,574,109.63
  5. Step 5: Solve for x
    x = 54,710,574,109.63/250,692.96
  6. Step 6: Final answer
    x = 218,237.38

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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.