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Finding the Fourth Proportional to 425,782.14, 637,950.22 and 256,947.70

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Solution

The fourth proportional to 425,782.14, 637,950.22 and 256,947.70 is: 384,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,782.14 : 637,950.22 = 256,947.70 : x
  2. Step 2: Convert to fraction form
    425,782.14/637,950.22 = 256,947.70/x
  3. Step 3: Cross multiply
    425,782.14x = 637,950.22 × 256,947.70
  4. Step 4: Simplify right side
    425,782.14x = 163,919,841,743.49
  5. Step 5: Solve for x
    x = 163,919,841,743.49/425,782.14
  6. Step 6: Final answer
    x = 384,985.25

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1.5x scale

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.