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Finding the Fourth Proportional to 238,527.20, 357,790.80 and 145,215.20

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Solution

The fourth proportional to 238,527.20, 357,790.80 and 145,215.20 is: 217,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,527.20 : 357,790.80 = 145,215.20 : x
  2. Step 2: Convert to fraction form
    238,527.20/357,790.80 = 145,215.20/x
  3. Step 3: Cross multiply
    238,527.20x = 357,790.80 × 145,215.20
  4. Step 4: Simplify right side
    238,527.20x = 51,956,662,580.16
  5. Step 5: Solve for x
    x = 51,956,662,580.16/238,527.20
  6. Step 6: Final answer
    x = 217,822.80

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1.5x scale

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.