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Finding the Fourth Proportional to 359,928.30, 540,001.80 and 202,051.20

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Solution

The fourth proportional to 359,928.30, 540,001.80 and 202,051.20 is: 303,138.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,928.30 : 540,001.80 = 202,051.20 : x
  2. Step 2: Convert to fraction form
    359,928.30/540,001.80 = 202,051.20/x
  3. Step 3: Cross multiply
    359,928.30x = 540,001.80 × 202,051.20
  4. Step 4: Simplify right side
    359,928.30x = 109,108,011,692.16
  5. Step 5: Solve for x
    x = 109,108,011,692.16/359,928.30
  6. Step 6: Final answer
    x = 303,138.19

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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.