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Finding the Fourth Proportional to 336,002.80, 503,485.80 and 291,420.40

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Solution

The fourth proportional to 336,002.80, 503,485.80 and 291,420.40 is: 436,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,002.80 : 503,485.80 = 291,420.40 : x
  2. Step 2: Convert to fraction form
    336,002.80/503,485.80 = 291,420.40/x
  3. Step 3: Cross multiply
    336,002.80x = 503,485.80 × 291,420.40
  4. Step 4: Simplify right side
    336,002.80x = 146,726,033,230.32
  5. Step 5: Solve for x
    x = 146,726,033,230.32/336,002.80
  6. Step 6: Final answer
    x = 436,680.98

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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.