Home / 385,315.60-531,751.80-238,173.16

Finding the Fourth Proportional to 385,315.60, 531,751.80 and 238,173.16

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Solution

The fourth proportional to 385,315.60, 531,751.80 and 238,173.16 is: 328,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,315.60 : 531,751.80 = 238,173.16 : x
  2. Step 2: Convert to fraction form
    385,315.60/531,751.80 = 238,173.16/x
  3. Step 3: Cross multiply
    385,315.60x = 531,751.80 × 238,173.16
  4. Step 4: Simplify right side
    385,315.60x = 126,649,006,541.69
  5. Step 5: Solve for x
    x = 126,649,006,541.69/385,315.60
  6. Step 6: Final answer
    x = 328,689.02

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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.