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Finding the Fourth Proportional to 315,020.04, 472,340.03 and 125,509.62

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Solution

The fourth proportional to 315,020.04, 472,340.03 and 125,509.62 is: 188,188.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,020.04 : 472,340.03 = 125,509.62 : x
  2. Step 2: Convert to fraction form
    315,020.04/472,340.03 = 125,509.62/x
  3. Step 3: Cross multiply
    315,020.04x = 472,340.03 × 125,509.62
  4. Step 4: Simplify right side
    315,020.04x = 59,283,217,048.54
  5. Step 5: Solve for x
    x = 59,283,217,048.54/315,020.04
  6. Step 6: Final answer
    x = 188,188.72

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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.