Home / 292,113.02-438,191.69-78,877.83

Finding the Fourth Proportional to 292,113.02, 438,191.69 and 78,877.83

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Solution

The fourth proportional to 292,113.02, 438,191.69 and 78,877.83 is: 118,322.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,113.02 : 438,191.69 = 78,877.83 : x
  2. Step 2: Convert to fraction form
    292,113.02/438,191.69 = 78,877.83/x
  3. Step 3: Cross multiply
    292,113.02x = 438,191.69 × 78,877.83
  4. Step 4: Simplify right side
    292,113.02x = 34,563,608,858.92
  5. Step 5: Solve for x
    x = 34,563,608,858.92/292,113.02
  6. Step 6: Final answer
    x = 118,322.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.