Home / 487,918.80-731,878.20-251,182.80

Finding the Fourth Proportional to 487,918.80, 731,878.20 and 251,182.80

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Solution

The fourth proportional to 487,918.80, 731,878.20 and 251,182.80 is: 376,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,918.80 : 731,878.20 = 251,182.80 : x
  2. Step 2: Convert to fraction form
    487,918.80/731,878.20 = 251,182.80/x
  3. Step 3: Cross multiply
    487,918.80x = 731,878.20 × 251,182.80
  4. Step 4: Simplify right side
    487,918.80x = 183,835,215,534.96
  5. Step 5: Solve for x
    x = 183,835,215,534.96/487,918.80
  6. Step 6: Final answer
    x = 376,774.20

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Similar ratio
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1.5x scale

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.