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Finding the Fourth Proportional to 369,152.40, 553,699.80 and 144,469.20

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Solution

The fourth proportional to 369,152.40, 553,699.80 and 144,469.20 is: 216,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,152.40 : 553,699.80 = 144,469.20 : x
  2. Step 2: Convert to fraction form
    369,152.40/553,699.80 = 144,469.20/x
  3. Step 3: Cross multiply
    369,152.40x = 553,699.80 × 144,469.20
  4. Step 4: Simplify right side
    369,152.40x = 79,992,567,146.16
  5. Step 5: Solve for x
    x = 79,992,567,146.16/369,152.40
  6. Step 6: Final answer
    x = 216,692.53

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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.