Home / 387,924.41-535,327.28-224,587.80

Finding the Fourth Proportional to 387,924.41, 535,327.28 and 224,587.80

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Solution

The fourth proportional to 387,924.41, 535,327.28 and 224,587.80 is: 309,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,924.41 : 535,327.28 = 224,587.80 : x
  2. Step 2: Convert to fraction form
    387,924.41/535,327.28 = 224,587.80/x
  3. Step 3: Cross multiply
    387,924.41x = 535,327.28 × 224,587.80
  4. Step 4: Simplify right side
    387,924.41x = 120,227,974,308.84
  5. Step 5: Solve for x
    x = 120,227,974,308.84/387,924.41
  6. Step 6: Final answer
    x = 309,926.30

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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.