Home / 292,401.24-438,248.43-142,416.78

Finding the Fourth Proportional to 292,401.24, 438,248.43 and 142,416.78

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Solution

The fourth proportional to 292,401.24, 438,248.43 and 142,416.78 is: 213,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,401.24 : 438,248.43 = 142,416.78 : x
  2. Step 2: Convert to fraction form
    292,401.24/438,248.43 = 142,416.78/x
  3. Step 3: Cross multiply
    292,401.24x = 438,248.43 × 142,416.78
  4. Step 4: Simplify right side
    292,401.24x = 62,413,931,692.32
  5. Step 5: Solve for x
    x = 62,413,931,692.32/292,401.24
  6. Step 6: Final answer
    x = 213,453.03

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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.