Home / 347,915.20-521,872.80-181,681.60

Finding the Fourth Proportional to 347,915.20, 521,872.80 and 181,681.60

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Solution

The fourth proportional to 347,915.20, 521,872.80 and 181,681.60 is: 272,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,915.20 : 521,872.80 = 181,681.60 : x
  2. Step 2: Convert to fraction form
    347,915.20/521,872.80 = 181,681.60/x
  3. Step 3: Cross multiply
    347,915.20x = 521,872.80 × 181,681.60
  4. Step 4: Simplify right side
    347,915.20x = 94,814,685,300.48
  5. Step 5: Solve for x
    x = 94,814,685,300.48/347,915.20
  6. Step 6: Final answer
    x = 272,522.40

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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.