Home / 487,719.99-731,504.52-188,156.88

Finding the Fourth Proportional to 487,719.99, 731,504.52 and 188,156.88

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Solution

The fourth proportional to 487,719.99, 731,504.52 and 188,156.88 is: 282,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,719.99 : 731,504.52 = 188,156.88 : x
  2. Step 2: Convert to fraction form
    487,719.99/731,504.52 = 188,156.88/x
  3. Step 3: Cross multiply
    487,719.99x = 731,504.52 × 188,156.88
  4. Step 4: Simplify right side
    487,719.99x = 137,637,608,189.10
  5. Step 5: Solve for x
    x = 137,637,608,189.10/487,719.99
  6. Step 6: Final answer
    x = 282,206.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.