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Finding the Fourth Proportional to 243,437.28, 335,885.88 and 141,402.12

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Solution

The fourth proportional to 243,437.28, 335,885.88 and 141,402.12 is: 195,101.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,437.28 : 335,885.88 = 141,402.12 : x
  2. Step 2: Convert to fraction form
    243,437.28/335,885.88 = 141,402.12/x
  3. Step 3: Cross multiply
    243,437.28x = 335,885.88 × 141,402.12
  4. Step 4: Simplify right side
    243,437.28x = 47,494,975,510.07
  5. Step 5: Solve for x
    x = 47,494,975,510.07/243,437.28
  6. Step 6: Final answer
    x = 195,101.49

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1.5x scale

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.