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Finding the Fourth Proportional to 425,304.53, 638,075.03 and 185,439.40

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Solution

The fourth proportional to 425,304.53, 638,075.03 and 185,439.40 is: 278,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,304.53 : 638,075.03 = 185,439.40 : x
  2. Step 2: Convert to fraction form
    425,304.53/638,075.03 = 185,439.40/x
  3. Step 3: Cross multiply
    425,304.53x = 638,075.03 × 185,439.40
  4. Step 4: Simplify right side
    425,304.53x = 118,324,250,718.18
  5. Step 5: Solve for x
    x = 118,324,250,718.18/425,304.53
  6. Step 6: Final answer
    x = 278,210.65

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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.