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Finding the Fourth Proportional to 371,954.40, 557,931.60 and 162,002.40

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Solution

The fourth proportional to 371,954.40, 557,931.60 and 162,002.40 is: 243,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,954.40 : 557,931.60 = 162,002.40 : x
  2. Step 2: Convert to fraction form
    371,954.40/557,931.60 = 162,002.40/x
  3. Step 3: Cross multiply
    371,954.40x = 557,931.60 × 162,002.40
  4. Step 4: Simplify right side
    371,954.40x = 90,386,258,235.84
  5. Step 5: Solve for x
    x = 90,386,258,235.84/371,954.40
  6. Step 6: Final answer
    x = 243,003.60

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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.