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Finding the Fourth Proportional to 315,281.80, 472,922.70 and 302,840.20

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Solution

The fourth proportional to 315,281.80, 472,922.70 and 302,840.20 is: 454,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,281.80 : 472,922.70 = 302,840.20 : x
  2. Step 2: Convert to fraction form
    315,281.80/472,922.70 = 302,840.20/x
  3. Step 3: Cross multiply
    315,281.80x = 472,922.70 × 302,840.20
  4. Step 4: Simplify right side
    315,281.80x = 143,220,005,052.54
  5. Step 5: Solve for x
    x = 143,220,005,052.54/315,281.80
  6. Step 6: Final answer
    x = 454,260.30

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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.