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Finding the Fourth Proportional to 239,461.84, 330,442.90 and 137,465.02

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Solution

The fourth proportional to 239,461.84, 330,442.90 and 137,465.02 is: 189,693.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,461.84 : 330,442.90 = 137,465.02 : x
  2. Step 2: Convert to fraction form
    239,461.84/330,442.90 = 137,465.02/x
  3. Step 3: Cross multiply
    239,461.84x = 330,442.90 × 137,465.02
  4. Step 4: Simplify right side
    239,461.84x = 45,424,339,857.36
  5. Step 5: Solve for x
    x = 45,424,339,857.36/239,461.84
  6. Step 6: Final answer
    x = 189,693.44

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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.