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Finding the Fourth Proportional to 307,852.32, 424,832.16 and 171,888.58

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Solution

The fourth proportional to 307,852.32, 424,832.16 and 171,888.58 is: 237,203.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,852.32 : 424,832.16 = 171,888.58 : x
  2. Step 2: Convert to fraction form
    307,852.32/424,832.16 = 171,888.58/x
  3. Step 3: Cross multiply
    307,852.32x = 424,832.16 × 171,888.58
  4. Step 4: Simplify right side
    307,852.32x = 73,023,795,658.65
  5. Step 5: Solve for x
    x = 73,023,795,658.65/307,852.32
  6. Step 6: Final answer
    x = 237,203.98

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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.