Home / 478,255.31-659,971.02-274,159.91

Finding the Fourth Proportional to 478,255.31, 659,971.02 and 274,159.91

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Solution

The fourth proportional to 478,255.31, 659,971.02 and 274,159.91 is: 378,328.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,255.31 : 659,971.02 = 274,159.91 : x
  2. Step 2: Convert to fraction form
    478,255.31/659,971.02 = 274,159.91/x
  3. Step 3: Cross multiply
    478,255.31x = 659,971.02 × 274,159.91
  4. Step 4: Simplify right side
    478,255.31x = 180,937,592,145.95
  5. Step 5: Solve for x
    x = 180,937,592,145.95/478,255.31
  6. Step 6: Final answer
    x = 378,328.46

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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.