Home / 372,432.90-513,915.64-219,461.16

Finding the Fourth Proportional to 372,432.90, 513,915.64 and 219,461.16

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Solution

The fourth proportional to 372,432.90, 513,915.64 and 219,461.16 is: 302,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,432.90 : 513,915.64 = 219,461.16 : x
  2. Step 2: Convert to fraction form
    372,432.90/513,915.64 = 219,461.16/x
  3. Step 3: Cross multiply
    372,432.90x = 513,915.64 × 219,461.16
  4. Step 4: Simplify right side
    372,432.90x = 112,784,523,875.07
  5. Step 5: Solve for x
    x = 112,784,523,875.07/372,432.90
  6. Step 6: Final answer
    x = 302,831.79

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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.