Home / 278,644.02-384,525.30-151,320.52

Finding the Fourth Proportional to 278,644.02, 384,525.30 and 151,320.52

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Solution

The fourth proportional to 278,644.02, 384,525.30 and 151,320.52 is: 208,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,644.02 : 384,525.30 = 151,320.52 : x
  2. Step 2: Convert to fraction form
    278,644.02/384,525.30 = 151,320.52/x
  3. Step 3: Cross multiply
    278,644.02x = 384,525.30 × 151,320.52
  4. Step 4: Simplify right side
    278,644.02x = 58,186,568,349.16
  5. Step 5: Solve for x
    x = 58,186,568,349.16/278,644.02
  6. Step 6: Final answer
    x = 208,820.45

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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.