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Finding the Fourth Proportional to 238,076.27, 328,549.28 and 130,656.30

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Solution

The fourth proportional to 238,076.27, 328,549.28 and 130,656.30 is: 180,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,076.27 : 328,549.28 = 130,656.30 : x
  2. Step 2: Convert to fraction form
    238,076.27/328,549.28 = 130,656.30/x
  3. Step 3: Cross multiply
    238,076.27x = 328,549.28 × 130,656.30
  4. Step 4: Simplify right side
    238,076.27x = 42,927,032,639.18
  5. Step 5: Solve for x
    x = 42,927,032,639.18/238,076.27
  6. Step 6: Final answer
    x = 180,307.91

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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.