Home / 353,947.02-488,447.55-210,712.02

Finding the Fourth Proportional to 353,947.02, 488,447.55 and 210,712.02

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Solution

The fourth proportional to 353,947.02, 488,447.55 and 210,712.02 is: 290,782.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,947.02 : 488,447.55 = 210,712.02 : x
  2. Step 2: Convert to fraction form
    353,947.02/488,447.55 = 210,712.02/x
  3. Step 3: Cross multiply
    353,947.02x = 488,447.55 × 210,712.02
  4. Step 4: Simplify right side
    353,947.02x = 102,921,769,924.55
  5. Step 5: Solve for x
    x = 102,921,769,924.55/353,947.02
  6. Step 6: Final answer
    x = 290,782.98

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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.