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Finding the Fourth Proportional to 238,159.94, 328,661.43 and 130,740.98

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Solution

The fourth proportional to 238,159.94, 328,661.43 and 130,740.98 is: 180,422.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,159.94 : 328,661.43 = 130,740.98 : x
  2. Step 2: Convert to fraction form
    238,159.94/328,661.43 = 130,740.98/x
  3. Step 3: Cross multiply
    238,159.94x = 328,661.43 × 130,740.98
  4. Step 4: Simplify right side
    238,159.94x = 42,969,517,446.40
  5. Step 5: Solve for x
    x = 42,969,517,446.40/238,159.94
  6. Step 6: Final answer
    x = 180,422.94

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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.