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Finding the Fourth Proportional to 372,019.66, 513,197.85 and 243,033.64

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Solution

The fourth proportional to 372,019.66, 513,197.85 and 243,033.64 is: 335,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,019.66 : 513,197.85 = 243,033.64 : x
  2. Step 2: Convert to fraction form
    372,019.66/513,197.85 = 243,033.64/x
  3. Step 3: Cross multiply
    372,019.66x = 513,197.85 × 243,033.64
  4. Step 4: Simplify right side
    372,019.66x = 124,724,341,525.67
  5. Step 5: Solve for x
    x = 124,724,341,525.67/372,019.66
  6. Step 6: Final answer
    x = 335,262.77

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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.