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Finding the Fourth Proportional to 245,128.80, 367,304.40 and 161,925.60

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Solution

The fourth proportional to 245,128.80, 367,304.40 and 161,925.60 is: 242,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,128.80 : 367,304.40 = 161,925.60 : x
  2. Step 2: Convert to fraction form
    245,128.80/367,304.40 = 161,925.60/x
  3. Step 3: Cross multiply
    245,128.80x = 367,304.40 × 161,925.60
  4. Step 4: Simplify right side
    245,128.80x = 59,475,985,352.64
  5. Step 5: Solve for x
    x = 59,475,985,352.64/245,128.80
  6. Step 6: Final answer
    x = 242,631.57

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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.