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Finding the Fourth Proportional to 351,751.02, 525,079.55 and 309,188.36

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Solution

The fourth proportional to 351,751.02, 525,079.55 and 309,188.36 is: 461,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,751.02 : 525,079.55 = 309,188.36 : x
  2. Step 2: Convert to fraction form
    351,751.02/525,079.55 = 309,188.36/x
  3. Step 3: Cross multiply
    351,751.02x = 525,079.55 × 309,188.36
  4. Step 4: Simplify right side
    351,751.02x = 162,348,480,762.70
  5. Step 5: Solve for x
    x = 162,348,480,762.70/351,751.02
  6. Step 6: Final answer
    x = 461,543.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.