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Finding the Fourth Proportional to 315,002.40, 472,503.60 and 196,904.40

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Solution

The fourth proportional to 315,002.40, 472,503.60 and 196,904.40 is: 295,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,002.40 : 472,503.60 = 196,904.40 : x
  2. Step 2: Convert to fraction form
    315,002.40/472,503.60 = 196,904.40/x
  3. Step 3: Cross multiply
    315,002.40x = 472,503.60 × 196,904.40
  4. Step 4: Simplify right side
    315,002.40x = 93,038,037,855.84
  5. Step 5: Solve for x
    x = 93,038,037,855.84/315,002.40
  6. Step 6: Final answer
    x = 295,356.60

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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.