Home / 308,919.08-426,088.44-283,507.52

Finding the Fourth Proportional to 308,919.08, 426,088.44 and 283,507.52

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Solution

The fourth proportional to 308,919.08, 426,088.44 and 283,507.52 is: 391,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,919.08 : 426,088.44 = 283,507.52 : x
  2. Step 2: Convert to fraction form
    308,919.08/426,088.44 = 283,507.52/x
  3. Step 3: Cross multiply
    308,919.08x = 426,088.44 × 283,507.52
  4. Step 4: Simplify right side
    308,919.08x = 120,799,276,925.07
  5. Step 5: Solve for x
    x = 120,799,276,925.07/308,919.08
  6. Step 6: Final answer
    x = 391,038.58

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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.