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Finding the Fourth Proportional to 238,047.40, 328,494.42 and 130,614.76

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Solution

The fourth proportional to 238,047.40, 328,494.42 and 130,614.76 is: 180,242.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,047.40 : 328,494.42 = 130,614.76 : x
  2. Step 2: Convert to fraction form
    238,047.40/328,494.42 = 130,614.76/x
  3. Step 3: Cross multiply
    238,047.40x = 328,494.42 × 130,614.76
  4. Step 4: Simplify right side
    238,047.40x = 42,906,219,829.64
  5. Step 5: Solve for x
    x = 42,906,219,829.64/238,047.40
  6. Step 6: Final answer
    x = 180,242.34

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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.