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Finding the Fourth Proportional to 153,858.60, 230,787.90 and 141,028.20

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Solution

The fourth proportional to 153,858.60, 230,787.90 and 141,028.20 is: 211,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,858.60 : 230,787.90 = 141,028.20 : x
  2. Step 2: Convert to fraction form
    153,858.60/230,787.90 = 141,028.20/x
  3. Step 3: Cross multiply
    153,858.60x = 230,787.90 × 141,028.20
  4. Step 4: Simplify right side
    153,858.60x = 32,547,602,118.78
  5. Step 5: Solve for x
    x = 32,547,602,118.78/153,858.60
  6. Step 6: Final answer
    x = 211,542.30

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1.5x scale

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.