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Finding the Fourth Proportional to 363,470.40, 501,603.93 and 202,315.20

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Solution

The fourth proportional to 363,470.40, 501,603.93 and 202,315.20 is: 279,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,470.40 : 501,603.93 = 202,315.20 : x
  2. Step 2: Convert to fraction form
    363,470.40/501,603.93 = 202,315.20/x
  3. Step 3: Cross multiply
    363,470.40x = 501,603.93 × 202,315.20
  4. Step 4: Simplify right side
    363,470.40x = 101,482,099,418.74
  5. Step 5: Solve for x
    x = 101,482,099,418.74/363,470.40
  6. Step 6: Final answer
    x = 279,203.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.