Home / 315,063.40-472,595.10-196,868.20

Finding the Fourth Proportional to 315,063.40, 472,595.10 and 196,868.20

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Solution

The fourth proportional to 315,063.40, 472,595.10 and 196,868.20 is: 295,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,063.40 : 472,595.10 = 196,868.20 : x
  2. Step 2: Convert to fraction form
    315,063.40/472,595.10 = 196,868.20/x
  3. Step 3: Cross multiply
    315,063.40x = 472,595.10 × 196,868.20
  4. Step 4: Simplify right side
    315,063.40x = 93,038,946,665.82
  5. Step 5: Solve for x
    x = 93,038,946,665.82/315,063.40
  6. Step 6: Final answer
    x = 295,302.30

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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.