Home / 306,631.02-423,098.16-281,827.32

Finding the Fourth Proportional to 306,631.02, 423,098.16 and 281,827.32

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Solution

The fourth proportional to 306,631.02, 423,098.16 and 281,827.32 is: 388,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,631.02 : 423,098.16 = 281,827.32 : x
  2. Step 2: Convert to fraction form
    306,631.02/423,098.16 = 281,827.32/x
  3. Step 3: Cross multiply
    306,631.02x = 423,098.16 × 281,827.32
  4. Step 4: Simplify right side
    306,631.02x = 119,240,620,529.73
  5. Step 5: Solve for x
    x = 119,240,620,529.73/306,631.02
  6. Step 6: Final answer
    x = 388,873.31

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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.