Home / 292,222.17-438,316.85-78,986.93

Finding the Fourth Proportional to 292,222.17, 438,316.85 and 78,986.93

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Solution

The fourth proportional to 292,222.17, 438,316.85 and 78,986.93 is: 118,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,222.17 : 438,316.85 = 78,986.93 : x
  2. Step 2: Convert to fraction form
    292,222.17/438,316.85 = 78,986.93/x
  3. Step 3: Cross multiply
    292,222.17x = 438,316.85 × 78,986.93
  4. Step 4: Simplify right side
    292,222.17x = 34,621,299,762.25
  5. Step 5: Solve for x
    x = 34,621,299,762.25/292,222.17
  6. Step 6: Final answer
    x = 118,475.95

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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.