Home / 425,322.80-637,984.20-214,933.40

Finding the Fourth Proportional to 425,322.80, 637,984.20 and 214,933.40

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Solution

The fourth proportional to 425,322.80, 637,984.20 and 214,933.40 is: 322,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,322.80 : 637,984.20 = 214,933.40 : x
  2. Step 2: Convert to fraction form
    425,322.80/637,984.20 = 214,933.40/x
  3. Step 3: Cross multiply
    425,322.80x = 637,984.20 × 214,933.40
  4. Step 4: Simplify right side
    425,322.80x = 137,124,113,252.28
  5. Step 5: Solve for x
    x = 137,124,113,252.28/425,322.80
  6. Step 6: Final answer
    x = 322,400.10

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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.