Home / 347,133.55-520,513.09-157,490.43

Finding the Fourth Proportional to 347,133.55, 520,513.09 and 157,490.43

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Solution

The fourth proportional to 347,133.55, 520,513.09 and 157,490.43 is: 236,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,133.55 : 520,513.09 = 157,490.43 : x
  2. Step 2: Convert to fraction form
    347,133.55/520,513.09 = 157,490.43/x
  3. Step 3: Cross multiply
    347,133.55x = 520,513.09 × 157,490.43
  4. Step 4: Simplify right side
    347,133.55x = 81,975,830,364.73
  5. Step 5: Solve for x
    x = 81,975,830,364.73/347,133.55
  6. Step 6: Final answer
    x = 236,150.70

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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.