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Finding the Fourth Proportional to 372,023.53, 513,203.20 and 243,037.51

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Solution

The fourth proportional to 372,023.53, 513,203.20 and 243,037.51 is: 335,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,023.53 : 513,203.20 = 243,037.51 : x
  2. Step 2: Convert to fraction form
    372,023.53/513,203.20 = 243,037.51/x
  3. Step 3: Cross multiply
    372,023.53x = 513,203.20 × 243,037.51
  4. Step 4: Simplify right side
    372,023.53x = 124,727,627,852.03
  5. Step 5: Solve for x
    x = 124,727,627,852.03/372,023.53
  6. Step 6: Final answer
    x = 335,268.12

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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.