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Finding the Fourth Proportional to 459,750.78, 634,459.23 and 255,810.33

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Solution

The fourth proportional to 459,750.78, 634,459.23 and 255,810.33 is: 353,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,750.78 : 634,459.23 = 255,810.33 : x
  2. Step 2: Convert to fraction form
    459,750.78/634,459.23 = 255,810.33/x
  3. Step 3: Cross multiply
    459,750.78x = 634,459.23 × 255,810.33
  4. Step 4: Simplify right side
    459,750.78x = 162,301,224,997.85
  5. Step 5: Solve for x
    x = 162,301,224,997.85/459,750.78
  6. Step 6: Final answer
    x = 353,020.01

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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.