Home / 439,201.20-658,364.40-202,130.40

Finding the Fourth Proportional to 439,201.20, 658,364.40 and 202,130.40

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Solution

The fourth proportional to 439,201.20, 658,364.40 and 202,130.40 is: 302,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,201.20 : 658,364.40 = 202,130.40 : x
  2. Step 2: Convert to fraction form
    439,201.20/658,364.40 = 202,130.40/x
  3. Step 3: Cross multiply
    439,201.20x = 658,364.40 × 202,130.40
  4. Step 4: Simplify right side
    439,201.20x = 133,075,459,517.76
  5. Step 5: Solve for x
    x = 133,075,459,517.76/439,201.20
  6. Step 6: Final answer
    x = 302,994.30

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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.