Home / 285,931.18-428,772.15-96,356.21

Finding the Fourth Proportional to 285,931.18, 428,772.15 and 96,356.21

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Solution

The fourth proportional to 285,931.18, 428,772.15 and 96,356.21 is: 144,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,931.18 : 428,772.15 = 96,356.21 : x
  2. Step 2: Convert to fraction form
    285,931.18/428,772.15 = 96,356.21/x
  3. Step 3: Cross multiply
    285,931.18x = 428,772.15 × 96,356.21
  4. Step 4: Simplify right side
    285,931.18x = 41,314,859,327.55
  5. Step 5: Solve for x
    x = 41,314,859,327.55/285,931.18
  6. Step 6: Final answer
    x = 144,492.32

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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.