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Finding the Fourth Proportional to 268,389.90, 370,373.91 and 147,528.60

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Solution

The fourth proportional to 268,389.90, 370,373.91 and 147,528.60 is: 203,587.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,389.90 : 370,373.91 = 147,528.60 : x
  2. Step 2: Convert to fraction form
    268,389.90/370,373.91 = 147,528.60/x
  3. Step 3: Cross multiply
    268,389.90x = 370,373.91 × 147,528.60
  4. Step 4: Simplify right side
    268,389.90x = 54,640,744,418.83
  5. Step 5: Solve for x
    x = 54,640,744,418.83/268,389.90
  6. Step 6: Final answer
    x = 203,587.19

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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.