Home / 279,455.08-385,648.04-152,130.64

Finding the Fourth Proportional to 279,455.08, 385,648.04 and 152,130.64

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Solution

The fourth proportional to 279,455.08, 385,648.04 and 152,130.64 is: 209,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,455.08 : 385,648.04 = 152,130.64 : x
  2. Step 2: Convert to fraction form
    279,455.08/385,648.04 = 152,130.64/x
  3. Step 3: Cross multiply
    279,455.08x = 385,648.04 × 152,130.64
  4. Step 4: Simplify right side
    279,455.08x = 58,668,883,139.95
  5. Step 5: Solve for x
    x = 58,668,883,139.95/279,455.08
  6. Step 6: Final answer
    x = 209,940.30

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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.