Home / 315,331.20-472,075.20-306,115.20

Finding the Fourth Proportional to 315,331.20, 472,075.20 and 306,115.20

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Solution

The fourth proportional to 315,331.20, 472,075.20 and 306,115.20 is: 458,278.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,331.20 : 472,075.20 = 306,115.20 : x
  2. Step 2: Convert to fraction form
    315,331.20/472,075.20 = 306,115.20/x
  3. Step 3: Cross multiply
    315,331.20x = 472,075.20 × 306,115.20
  4. Step 4: Simplify right side
    315,331.20x = 144,509,394,263.04
  5. Step 5: Solve for x
    x = 144,509,394,263.04/315,331.20
  6. Step 6: Final answer
    x = 458,278.14

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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.