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Finding the Fourth Proportional to 268,345.86, 370,321.12 and 147,498.32

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Solution

The fourth proportional to 268,345.86, 370,321.12 and 147,498.32 is: 203,549.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,345.86 : 370,321.12 = 147,498.32 : x
  2. Step 2: Convert to fraction form
    268,345.86/370,321.12 = 147,498.32/x
  3. Step 3: Cross multiply
    268,345.86x = 370,321.12 × 147,498.32
  4. Step 4: Simplify right side
    268,345.86x = 54,621,743,060.52
  5. Step 5: Solve for x
    x = 54,621,743,060.52/268,345.86
  6. Step 6: Final answer
    x = 203,549.79

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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.